Basketball: Lakers cap emotional week with win over Trail Blazers

LOS ANGELES: Kobe Bryant scored 29 of his 40 points in the second half as the Los Angeles Lakers capped an emotional week with a much-needed 111-107 NBA victory over the Portland Trail Blazers.

Bryant added seven rebounds and two steals for the Lakers, who have won seven of their last 10 games and stand 3-1/2 games behind the Houston Rockets for the eighth and final playoff spot in the Western Conference standings.

In an interview with Sports Illustrated published this week, Bryant said he was certain the Lakers would make the playoffs.

"It's not a question of if we make the playoffs. We will," Bryant insisted.

The team, which has had more than its share of dysfunctional moments this season, has been through an emotional five days since the death on Monday of 80-year-old owner Jerry Buss.

Buss was remembered at the first Lakers game following his death, a 113-99 win over Boston on Wednesday.

At a memorial service on Thursday Bryant challenged his teammates to live up to Buss' standards of excellence.

"We're playing for something bigger than ourselves, bigger than a single season. We are playing for a great man, Dr. Jerry Buss," he said.

Playing hours after Buss was buried on Friday, the Lakers remained mindful of his legacy, Bryant said.

"I think we understand what's at stake and what this franchise stands for," Bryant said. "That gives you an extra gear."

Dwight Howard added 19 points and 16 rebounds for the Lakers, and Antawn Jamison chipped in 16 points.

JJ Hickson scored with 22 points and 11 rebounds for the slumping Blazers, who have now lost seven in a row to slip 1-1/2 games behind the Lakers.

- AFP/ir

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Water tank body still mystery

STORY HIGHLIGHTS

• Cause of death deferred, pending further examination


• Tests show hotel water is free of harmful bacteria, health department says


• Canadian university says woman not registered in classes this year


• Water "had a very funny, sweety, disgusting taste," one guest says

Los Angeles (CNN) -- Two days after the grisly discovery, the case of the Los Angeles hotel water tank corpse is a mystery with many unanswered questions.

The decomposing body of Elisa Lam floated inside a water tank on the roof of the Cecil Hotel while guests brushed their teeth, bathed and drank with water from it for as long as 19 days.

A maintenance worker, checking on complaints about the hotel's water, found the 21-year-old Canadian tourist inside one of four water cisterns Tuesday morning, Los Angeles Police Sgt. Rudy Lopez said.

How and where did Elisa Lam die?

Body found in hotel water tank

HIDE CAPTION

Los Angeles robbery-homicide detectives are treating this as a suspicious death for obvious reasons, Lopez said. Falling into a covered water tank behind a locked door on top of a roof would be an unusual accident.

An autopsy was completed, but the cause of death is deferred pending further examination, assistant chief coroner Ed Winter said Thursday. That may take six to eight weeks.

It will be several weeks before investigators have the toxicology lab report which would show whether Lam had any drugs in her system.

Any marks, injuries or wounds may suggest Lam died elsewhere and was dumped into the tank by her killer.

Water in Lam's lungs could be a sign that she drowned, but it might not tell why she was inside the small tank.

One clue comes from security camera video of Lam inside a hotel elevator the last day she was seen.

She is seen walking into the elevator, pushing the buttons for four floors and then peering out of the opened elevator door as if she is hiding or looking for someone. Clad in a red hoodie, Lam at one point walks out of the elevator before returning to it, pushing the buttons again. She then stands outside the open elevator doorway, motioning with her hands, before apparently walking away.

Lam checked into the Cecil Hotel five days earlier, January 26, on her way to Santa Cruz, California, according to police in her hometown of Vancouver, British Columbia.

Why did it it take so long to find Lam?

Lam's parents reported the University of British Columbia student missing in early February. Her daily calls home stopped on January 31, police told reporters on February 6 at a Los Angeles news conference.

Because it was an international case -- and her parents and sister flew to California to find answers -- the case may have gotten more attention than most of the several thousand missing person reports made in Los Angeles each year.

A search of the hotel then found no sign of Lam, including a trip to the roof with a police search dog, Lopez said.

Strange things began happening with the hotel's water supply later in the month, according to Sabina and Michael Baugh, a British couple who spent eight days there until checking out Wednesday. The water pressure dropped to a trickle at times.

"The shower was awful," Sabina Baugh said. "When you turned the tap on, the water was coming black first for two seconds and then it was going back to normal."

The tap water "tasted horrible," Baugh said. "It had a very funny, sweety, disgusting taste. It's a very strange taste. I can barely describe it."

But for a week, they never complained. "We never thought anything of it," she said. "We thought it was just the way it was here."

Knowing now what they didn't know then about the water is sickening, Michael Baugh said. "It makes you feel literally physically sick, but more than that you feel it psychologically. You think about it and it's not good."

Eventually, the hotel maintenance department investigated the water problem, sending a worker to look into the tank, police said. He saw Lam's lifeless body at the bottom.

A hard-working family

Randy Schmidt, a spokesman for the University of British Columbia, said Lam was registered in a class in August, but was not registered in any classes this year, according to records.

"Unfortunately, we do not have much more to say, other than to extend our deepest sympathies to the family," said Schmidt.

According to Los Angeles police, Lam tended to use public transportation.

Teika Steins, manager of a hostel in Toronto, Canada, said Lam stayed a week there in early December. Steins called the young woman friendly and outgoing.

Flowers and signs were left Thursday outside the temporarily-closed Lam family restaurant in Burnaby, British Columbia.

Tanya Grohmann, who works nearby, said she was saddened by the loss and the fact the family did not know what happened to the young woman.

"They are a hard-working family. They immigrated here," she told CNN affiliate CTV. "They've been in the neighborhood for nine years working. ... They're honest people."

Why did hotel stay open after discovery?

New guests continued to check into the Cecil in the hours after firefighters removed Lam's body from the water tank. But each guest was asked to sign a waiver releasing the hotel from liability if they become ill. "You do so at your own risk and peril," the hotel's release said. Guests who already paid for their rooms would not get refunds if they move out, it said.

CNN's repeated calls to the hotel for comment were unreturned Wednesday and Thursday.

The Los Angeles Public Health Department immediately tested the water supply, but told the manager they could stay open as long as they provided bottle water and warned guests not to drink the tap water.

The results of the testing showed no harmful bacteria in the tank or the pipes, according to Angelo Bellomo, director of environmental health for the department. Chlorine in the city's water may be the reason it is safe, he said.

All of the tanks and pipes in the building still must be drained, flushed and sanitized, Bellomo said. The water will be retested after that process, which should take several days, he said.

Several guests interviewed by CNN on Wednesday indicated the hotel management did not tell them about the body in the water supply they had been drinking and bathing in.

Qui Nguyen learned about it from a CNN reporter Wednesday morning. He decided not to sign the waiver and instead find a new hotel.

Many of its guests are tourists from other countries drawn by the hotel's billing as a "European-style" hotel that is the perfect accommodation for "spend-thrifty travelers."

But if they take Kim Cooper's tour bus ride through the neighborhood, they would hear about the Cecil being the former temporary home to at least two convicted murderers, including "Night Stalker" serial killer Richard Ramirez. Ramirez paid $14 a day to stay on the 14th floor during his 1980s killing spree, Cooper said.

The Cecil Hotel is "in the heart of the action, allowing our guest to embrace the city and the surrounding areas that make Los Angeles famous," according to the description you'll hear when you call there and are placed on hold.

In fact, the hotel is just a few blocks away from the infamous Skid Row district in downtown Los Angeles, but 16 miles from the beaches of Santa Monica, eight miles from Hollywood's Walk of Fame and 12 miles from glamorous streets of Beverly Hills that are prominently featured on the Cecil's website.

If you want a reservation at the Cecil you will have to wait until next month. The website said the hotel is "sold out" until March 1. After then, you can book a room for $65.

Hotel with corpse in water tank has notorious past

CNN's Kyung Lah, Chandler Friedman and Chuck Conder contributed to this report.

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Pentagon grounds F-35 fleet after engine crack found

Updated 9:03 PM ET

WASHINGTON The Pentagon on Friday grounded its fleet of F-35 fighter jets after discovering a cracked engine blade in one plane.

The problem was discovered during what the Pentagon called a routine inspection at Edwards Air Force Base, Calif., of an F-35A, the Air Force version of the sleek new plane. The Navy and the Marine Corps are buying other versions of the F-35, which is intended to replace older fighters like the Air Force F-16 and the Navy F/A-18.

All versions -- a total of 51 planes -- were grounded Friday pending a more in-depth evaluation of the problem discovered at Edwards. None of the planes have been fielded for combat operations; all are undergoing testing.

In a brief written statement, the Pentagon said it is too early to know the full impact of the newly discovered problem.

A watchdog group, the Project on Government Oversight, said the grounding is not likely to mean a significant delay in the effort to field the stealthy aircraft.

"The F-35 is a huge problem because of its growing, already unaffordable, cost and its gigantically disappointing performance," the group's Winslow Wheeler said. "That performance would be unacceptable even if the aircraft met its far-too-modest requirements, but it is not."

The F-35 is the Pentagon's most expensive weapons program at a total estimated cost of nearly $400 billion. The Pentagon envisions buying more than 2,400 F-35s, but some members of Congress are balking at the price tag.

Friday's suspension of flight operations will remain in effect until an investigation of the problem's root cause is determined.

The Pentagon said the engine in which the problem was discovered is being shipped to a Pratt & Whitney facility in Connecticut for more thorough evaluation.

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Cyberattacks Bring Attention to Security Reform

Recent accusations of a large-scale cyber crime effort by the Chinese government left many wondering what immediate steps the president and Congress are taking to prevent these attacks from happening again.

On Wednesday, the White House released the administration's Strategy on Mitigating the Theft of U.S. Trade Secrets as a follow-up to the president's executive order. The strategy did not outwardly mention China, but it implied U.S. government awareness of the problem.

"We are taking a whole of government approach to stop the theft of trade secrets by foreign competitors or foreign governments by any means -- cyber or otherwise," U.S. Intellectual Property Enforcement Coordinator Victoria Espinel said in a White House statement.

As of now, the administration's strategy is the first direct step in addressing cybersecurity, but in order for change to happen Congress needs to be involved. So far, the Cyber Intelligence Sharing and Protection Act (CISPA) is the most notable Congressional legislation addressing the problem, despite its past controversy.

Last April, CISPA was introduced by House Intelligence Committee Chairman Mike Rogers, R-Mich., and Rep. Dutch Ruppersberger, D-Md. The act would allow private companies with consumer information to voluntarily share those details with the NSA and the DOD in order to combat cyber attacks.

Peter Parks/AFP/Getty Images

The companies would be protected from any liabilities if the information was somehow mishandled. This portion of the act sounded alarm bells for CISPA's opponents, like the ACLU, which worried that this provision would incentivize companies to share individuals' information with disregard.

CISPA passed in the House of Representatives, despite a veto threat from the White House stemming from similar privacy concerns. The bill then died in the Senate.

This year, CISPA was reintroduced the day after the State of the Union address during which the president declared an executive order targeting similar security concerns from a government standpoint.

In contrast to CISPA, the executive order would be initiated on the end of the government, and federal agencies would share relevant information regarding threats with private industries, rather than asking businesses to supply data details. All information shared by the government would be unclassified.

At the core of both the executive order and CISPA, U.S. businesses and the government would be encouraged to work together to combat cyber threats. However, each option would clearly take a different route to collaboration. The difference seems minimal, but has been the subject of legislative debates between the president and Congress for almost a year, until now.

"My response to the president's executive order is very positive," Ruppersberger told ABC News. "[The president] brought up how important information sharing is [and] by addressing critical infrastructure, he took care of another hurdle that we do not have to deal with."

Addressing privacy roadblocks, CISPA backers said the sharing of private customer information with the government, as long as personal details are stripped, is not unprecedented.

"Think of what we do with HIPAA in the medical professions; [doctors do not need to know] the individual person, just the symptoms to diagnose a disease," Michigan Gov. John Engler testified at a House Intelligence Committee hearing in an attempt to put the problem into context.

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Obama a marker on post-racial path

Donna Brazile says Black History Month is a time to note crossroads the nation has faced.

STORY HIGHLIGHTS

• Donna Brazile: Black History Month themed crossroads, "tied to two pivotal U.S. events


• Emancipation Proclamation, March on Washington were crossroads, she says


• She says crossroad decisions are threaded along U.S. road to post-racial society


• Brazile: We're not there yet, but re-election of Obama a harbinger

Editor's note: Donna Brazile, a CNN contributor and a Democratic strategist, is vice chairwoman for voter registration and participation at the Democratic National Committee. She is a nationally syndicated columnist, an adjunct professor at Georgetown University and author of "Cooking with Grease." She was manager for the Gore-Lieberman presidential campaign in 2000.

(CNN) -- Politicians and historians love to use the word "crossroads."

It's become as American, and cliched, as "Mom's apple pie." The historian Shelby Foote, wrote, "The Civil War defined us as what we are and it opened us to being what we became, good and bad things. ... It was the crossroads of our being, and it was a hell of a crossroads."

I have been thinking about the word, because this year's Black History Month theme is "At the Crossroads of Freedom and Equality: The Emancipation Proclamation and the March on Washington." Two pivotal events that shaped modern American history.

A "crossroads" is literally the intersection of two or more roads -- two or more paths to get to the same place. Metaphorically, it refers to the place -- the moment -- of a critical decision. Shall we go forward together? Shall we separate? Shall we fight?

Donna Brazile

We mark history's crossroads not by road signs but by the documents that identify them. The Declaration of Independence is certainly one. Who has not memorized the opening of the second paragraph? "We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty, and the Pursuit of Happiness."

Political philosopher John Locke's original term was, "Life, liberty, and property." Thomas Jefferson borrowed the phrase, changing "property" to "the pursuit of happiness." He understood that "happiness" -- being significant -- was more important than property, and that a "right to property" too often meant a "right" to own someone else, i.e. slavery.

Locke rejected the "divine right of kings." He argued instead that God invested each person with an innate equality -- the right to be on this Earth and to be free -- free to pursue dreams. On the way to his first inauguration, Abraham Lincoln stopped at Independence Hall in Philadelphia to celebrate Washington's birthday. He told the assembled crowd, "I have never had a feeling politically that did not spring from the sentiments embodied in the Declaration of Independence."

Lincoln's issuance of the Emancipation Proclamation in 1863 was another crossroads, one that required Lincoln, and the nation, to walk a long road of personal and national growth. "All men are created equal" had to take on a deeper meaning. Frederick Douglass, one of Lincoln's "guides" on his journey, later said the quality he most admired in Lincoln was his political courage.

Confederate President Jefferson Davis once acknowledged to an Atlantic Monthly writer that Lincoln's Emancipation resulted in the self-liberation of "two millions of our slaves."

A journey of a hundred years brought us to another crossroads -- the 1963 March on Washington. While "property in man" no longer existed, millions of Americans were unable to pursue their dream, or to live with full equality.

James Farmer, a leading civil rights activist who was in jail in my home state of Louisiana, sent a message to the quarter-million in attendance that summer day, saying his people would not be free "until the dogs stop biting us in the South and the rats stop biting us in the North."

Martin Luther King, Jr.'s "I Have a Dream" speech, like the Declaration, resonates. It echoes through the years in the heartbeats of Americans. The "pursuit of happiness" is more than pleasure, for we often take great pains in the pursuit. Rather, the pursuit of happiness is the freedom to pursue our dreams, to make meaning in and find the unique significance of our lives.

That is something we can only do when, in the bonds of fellowship and shared history, we nurture our dreams. The caged bird sings of freedom, but the freed bird sings of dreams. Today, we are 150 years further down the road to realizing the American creed of equality and freedom. We reached a crossroads in 2008 with the election of our first African-American president. We chose to continue on the road to a "post-racial" society.

We're not there yet. But in 2012, when we could have chosen to travel down another road, one that led to further economic inequality, we chose instead to continue the realization of equality and freedom, and to the unfettered pursuit of dreams for each American.

In some ways, the re-election of President Obama is more significant than his election four years ago. I say this not because I'm a Democrat, but because this time, the dog-whistles of racism were called out and condemned by people of faith and goodwill on both sides of the aisle.

During the next four years, we'll come to more crossroads. I pray, and believe, we will take the road to freedom and equality for each child, man and woman in America.

Follow us on Twitter @CNNOpinion

Join us on Facebook/CNNOpinion

The opinions expressed in this commentary are solely those of Donna Brazile.

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Locals fill most jobs at new plant on Jurong Island

SINGAPORE: Tuas Power's Tembusu multi-utilities complex on Jurong Island has generated 150 jobs ahead of its official opening next week.

One hundred positions have been filled and the plant's looking for Singaporeans to fill 50 more vacancies.

Nine in 10 positions are currently held by locals.

The jobs are technical in nature, with Tuas Power looking out for graduates from polytechnics and the Institutes of Technical Education.

The Jurong Island facility provides steam, water and electricity to petrochemical firms.

Phase one of the plant's operations has been completed, with full completion expected no later than 2017.

By then, the plant would have generated a total of some 200 jobs.

- CNA/ck

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Prosecution is dealt blow as judge weighs bail for Pistorius

STORY HIGHLIGHTS

• Prosecutors say they worry Oscar Pistorius will flee, if freed on bail


• Pistorius has pledged to stay in South Africa and fight the charges


• He is accused of the premeditated murder of his model girlfriend

Pretoria, South Africa (CNN) -- A South African judge will likely decide Friday whether to release track star Oscar Pistorius following a bail hearing jolted by the revelation that the lead police investigator in the case faces attempted murder charges.

The allegations were the latest blow to a prosecution case that has suffered through several miscues during the bail hearing that began Tuesday, including admissions that police could have contaminated the crime scene and failed to properly catalog evidence.

The South African Police Service pulled Hilton Botha from the case Thursday after prosecutors reinstated seven counts of attempted murder charges against him. Botha is accused of opening fire on a minibus full of people while drunk in 2011.

Prosecutors are trying to keep Pistorius jailed pending his trial on a charge of premeditated murder in the February 14 shooting death of his girlfriend, model Reeva Steenkamp, 29.

Pistorius, 26, is accused of the premeditated murder of Steenkamp after, according to prosecutors, a heated argument in the early morning hours of Valentine's Day.

The sprinter, however, says he thought an intruder was hiding in a toilet room inside the bathroom of his Pretoria home. He says he fired into the room in a fit of terror before realizing Steenkamp was inside.

Prosecutors say they are worried Pistorius will flee the country, if he's released. Pistorius has pledged to stay in South Africa and fight the charges if released, adding that he's unlikely to escape notice as a well-known athlete who walks on prosthetic legs.

Prosecution miscues?

Court officials learned Thursday that prosecutors had restored the charges against Botha in connection with the 2011 shooting case. The charges had previously been withdrawn for additional investigation, but prosecutors decided Wednesday to proceed, said Commissioner Riah Phiyega of the South African Police Service.

Phiyega praised Botha, saying he is an experienced investigator who "has presented the case of the police well."

Botha was replaced by the department's most senior detective, Vinesh Moonoo, in a move Phiyega said positioned the department for a "long-haul" investigation of Steenkamp's killing.

During the bail hearing, being held in a dark, stuffy Pretoria courtroom, defense attorney Barry Roux hammered away at the credibility of Botha and the entire police investigation.

He argued police had missed a bullet in the toilet of the bathroom where Steenkamp was shot and may have contaminated the crime scene by failing to wear protective foot covers.

Botha told Roux that investigators didn't wear the booties because they'd run out.

Bulelwa Makeke, the spokeswoman for South Africa's National Prosecuting Authority, said before the announcement of Botha's removal that the accusations against the investigator would be little more than a "speed bump" in the Pistorius case.

Positioning the prosecution

In arguments wrapping up during Thursday's session, Prosecutor Gerrie Nel said Pistorius' defense team has failed to explain why investigators found two cell phones and the gun believed to have been used in the shooting in front of the shower.

That goes to the prosecution claim that Steenkamp didn't merely get up to relieve herself in the middle of the night, but in fact had locked herself in the bathroom with her cell phone to protect herself from Pistorius.

Roux, meanwhile, got Botha to acknowledge during the hearing that investigators had failed to collect any evidence that counters Pistorius' argument that he mistakenly shot Steenkamp.

Roux told Magistrate Desmond Nair that the prosecution's case had suffered a monumental collapse.

The defense attorney also questioned police claims that a witness who lived at least 300 meters (328 yards) from Pistorius' home had heard a raging argument coming from the home.

He also said officers had failed to properly investigate and catalog evidence found there, including ammunition and a bottle of what Botha first called testosterone before backtracking.

Roux said the substance is an herbal remedy.

Ballistic evidence

Authorities have argued that ballistic evidence shows Pistorius had to intentionally target the toilet to strike Steenkamp, and he was standing on his prosthetic legs when he shot through the bathroom door.

Pistorius said in his statement that when he shot through the door, he was feeling vulnerable to an intruder because he was not wearing his legs and had limited mobility.

When Pistorius was 11 months old, his legs were amputated below the knees because he was missing the fibulae.

He runs on special carbon fiber blades, earning the nickname "Blade Runner."

He made history last year as the first disabled athlete to compete in the able-bodied London Games. A few weeks after the Olympics, he smashed a record to win the men's 400-meter in the 2012 Paralympic Games.

Robyn Curnow reported from Pretoria, and Chelsea J. Carter reported and wrote from Atlanta. CNN's Michael Pearson and Ben Brumfield contributed to this report.

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Georgia executes man lawyers claimed was mentally ill

JACKSON, Ga. A 38-year-old inmate convicted of killing two college students in 1995 was executed in Georgia on Thursday, apologizing to the families of both victims before being injected at a state prison.

Andrew Allen Cook was pronounced dead at 11:22 p.m., about 14 minutes after he was injected with the sedative pentobarbital. He was the first inmate to be executed since the state changed its procedure in July from a three-drug combination to a single dose.

With his last words, he apologized to the families of Mercer University students Grant Patrick Hendrickson, 22, and Michele Lee Cartagena, 19, who were shot several times as they sat in a car at Lake Juliette, which is about 75 miles south of Atlanta. He said what he did was senseless.

"I'm sorry," Cook said as he was strapped to a gurney. "I'm not going to ask you to forgive me. I can't even do it myself."

He also thanked his family for "their support, for being with me and I'm sorry I took so much from you all."

The Georgia Appeals Court on Wednesday temporarily stayed Cook's execution to consider a challenge to the state's lethal injection procedure. But the Georgia Supreme Court lifted the stay Thursday and all other appeals were exhausted.

Cook's lawyers have argued at various stages in their appeals of his death sentence that he suffered from mental illness and was being treated for depression up to the time of his death.

Mary Hendrickson, the mother of one of the victims, recently told television station WMAZ-TV in Macon she's been waiting 18 years for justice.

"I think that's what it was: the devil's work," she said. "When all that is going on, I was just thinking to myself, 'Well, the devil is not going to win. He's not going to win over my heart. He is not going to win."'

The single-drug injection began at about 11:08 p.m. Cook blinked his eyes a few times, and his eyes soon got heavy. His chest was heaving for about two or three minutes as his eyes closed. Not too long after, two doctors examined him and nodded and Carl Humphrey, warden of the state prison in Jackson, pronounced him dead.

Corrections officials said Thursday evening that Cook had received visits from family earlier in the day and ate the last meal he had requested -- steak, a baked potato, potato wedges, fried shrimp, lemon meringue pie and soda.

A jury sentenced Cook to death after he was convicted in the January 2, 1995 slayings at Lake Juliette. Cook wasn't charged until more than two years later. He confessed to his father, a Macon FBI agent who ended up testifying at his son's trial.

The Georgia Bureau of Investigation reached out to John Cook in December 1995 because they were interested in speaking to his son. When he called his then-22-year-old son to tell him the GBI wanted to talk to him, he had no idea the younger man was considered a suspect.

"I said, 'Andy, the GBI is looking for you concerning the Lake Juliette homicide. Do you know anything about it?"' John Cook testified at his son's trial in March 1998. "He said, 'Daddy, I can't tell you. You're one of them. ... You're a cop."'

Eventually, Andrew Cook told his father that he knew about the slayings, that he was there and that he knew who shot the couple, John Cook recalled.

"I just felt like the world was crashing in on me. But I felt maybe he was there and just saw what happened," he said. "I then asked, 'Did you shoot them?'

"After a pause on the phone, he said, 'Yes."'

As a law enforcement officer, John Cook said he was forced to call his supervisor and contacted the Monroe County sheriff.

At the trial, as he walked away from the stand, the distraught father mouthed "I'm sorry" to the victims' families who were sitting on the front row of the courtroom. Several members of both families acknowledged his apology.

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Arias Challenged On Pedophilia Claim

Accused murderer Jodi Arias was challenged today by phone records, text message records, and her own diary entries that appeared to contradict her claim that she caught her ex-boyfriend, Travis Alexander, looking at pictures of naked boys.

Arias had said during her testimony that one afternoon in January 2008, she walked in on Alexander masturbating to pictures of naked boys. She said she fled from the home, threw up, drove around aimlessly, and ignored numerous phone calls from Alexander because she was so upset at what she had seen.

The claim was central to the defense's accusation that Alexander was a "sexual deviant" who grew angry and abusive toward Arias in the months after the incident, culminating in a violent confrontation in June that left Alexander dead.

Arias claimed she killed him in self-defense. She could face the death penalty if convicted of murder.

Catching Up on the Trial? Check Out ABC News' Jodi Arias Trial Coverage

Today, prosecutor Juan Martinez, who has been aggressive in questioning witnesses throughout the trial, volleyed questions at her about the claim of pedophilia, asking her to explain why her and Alexander's cell phone records showed five calls back and forth between the pair throughout the day she allegedly fled in horror. Some of the calls were often initiated Arias, according to phone records.

Jodi Arias Doesn't Remember Stabbing Ex-Boyfriend Watch Video

Jodi Arias Murder Trial: Testimony About Ex's Death Watch Video

Arias on Ex-Boyfriend's Death: 'I Don't Remember' Watch Video

She and Alexander also exchanged text messages throughout the afternoon and evening at a time when Arias claims the pedophilia incident occurred. In those messages they discuss logistics of exchanging one another's cars that night. Alexander sends her text messages about the car from a church social event he attended that night that she never mentioned during her testimony.

Arias stuck by her claim that she saw Alexander masturbating to the pictures, and her voice remained steady under increasingly-loud questioning by Martinez.

But Martinez also sparred with Arias on the stand over minor issues, such as when he asked Arias detailed questions about the timing and order of events from that day and Arias said she could not remember them.

"It seems you have problems with your memory. Is this a longstanding thing? Since you started testifying?" Martinez asked.

"No it goes back farther than that. I don't know even know if I'd call it a problem," Arias said.

"How far back does it go? You don't want to call them problems, are they issues? Can we call them issues? When did you start having them?" he asked in rapid succession. "You say you have memory problems, that it depends on the circumstance. Give me the factors that influence that."

"Usually when men like you or Travis are screaming at me," Arias shot back from the stand. "It affects my brain, it makes my brain scramble."

"You're saying it's Mr. Martinez's fault?" Martinez asked, referring to himself in the third person.

"Objection your honor," Arias' attorney finally shouted. "This is a stunt!"

Timeline of the Jodi Arias Trial

Martinez dwelled at one point about a journal entry where Arias wrote that she missed the Mormon baptism of her friend Lonnie because she was having kinky sex with Alexander. He drew attention to prior testimony that she and Alexander used Tootsie Pops and Pop Rocks candy as sexual props.

"You're trying to get across (in the diary entry) that this involved a sexual liaison with Mr. Alexander right?" he asked. "And you're talking about Tootsie Pops and Pop Rocks?"

"That happened also that night," Arias said.

"You were there, enjoying it, the Tootsie Pops and Pop Rocks?" he asked again, prompting a smirk from Arias.

"I enjoyed his attention," Arias said.

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How secure is the papal election?

The Conclave of Cardinals that will elect a new pope will meet in the Sistine Chapel in Vatican City.

STORY HIGHLIGHTS

• Bruce Schneier: Rules for picking a new pope are very detailed


• He says elaborate precautions are taken to prevent election fraud


• Every step of the election process is observed by people who know each other


• Schneier: Vatican's procedures, centuries in the making, are very secure

Editor's note: Bruce Schneier is a security technologist and author of "Liars and Outliers: Enabling the Trust Society Needs to Survive." In 2005, before the conclave that elected Pope Benedict XVI, Schneier wrote a piece on his blog about the process. This essay is an updated version, reflecting new information and analysis.

(CNN) -- As the College of Cardinals prepares to elect a new pope, security people like me wonder about the process. How does it work, and just how hard would it be to hack the vote?

The rules for papal elections are steeped in tradition. John Paul II last codified them in 1996, and Benedict XVI left the rules largely untouched. The "Universi Dominici Gregis on the Vacancy of the Apostolic See and the Election of the Roman Pontiff" is surprisingly detailed.

Every cardinal younger than 80 is eligible to vote. We expect 117 to be voting. The election takes place in the Sistine Chapel, directed by the church chamberlain. The ballot is entirely paper-based, and all ballot counting is done by hand. Votes are secret, but everything else is open.

Bruce Schneier

First, there's the "pre-scrutiny" phase.

"At least two or three" paper ballots are given to each cardinal, presumably so that a cardinal has extras in case he makes a mistake. Then nine election officials are randomly selected from the cardinals: three "scrutineers," who count the votes; three "revisers," who verify the results of the scrutineers; and three "infirmarii," who collect the votes from those too sick to be in the chapel. Different sets of officials are chosen randomly for each ballot.

Each cardinal, including the nine officials, writes his selection for pope on a rectangular ballot paper "as far as possible in handwriting that cannot be identified as his." He then folds the paper lengthwise and holds it aloft for everyone to see.

When everyone has written his vote, the "scrutiny" phase of the election begins. The cardinals proceed to the altar one by one. On the altar is a large chalice with a paten -- the shallow metal plate used to hold communion wafers during Mass -- resting on top of it. Each cardinal places his folded ballot on the paten. Then he picks up the paten and slides his ballot into the chalice.

Pope may change rules to allow earlier election

If a cardinal cannot walk to the altar, one of the scrutineers -- in full view of everyone -- does this for him.

If any cardinals are too sick to be in the chapel, the scrutineers give the infirmarii a locked empty box with a slot, and the three infirmarii together collect those votes. If a cardinal is too sick to write, he asks one of the infirmarii to do it for him. The box is opened, and the ballots are placed onto the paten and into the chalice, one at a time.

When all the ballots are in the chalice, the first scrutineer shakes it several times to mix them. Then the third scrutineer transfers the ballots, one by one, from one chalice to another, counting them in the process. If the total number of ballots is not correct, the ballots are burned and everyone votes again.

To count the votes, each ballot is opened, and the vote is read by each scrutineer in turn, the third one aloud. Each scrutineer writes the vote on a tally sheet. This is all done in full view of the cardinals.

The total number of votes cast for each person is written on a separate sheet of paper. Ballots with more than one name (overvotes) are void, and I assume the same is true for ballots with no name written on them (undervotes). Illegible or ambiguous ballots are much more likely, and I presume they are discarded as well.

Then there's the "post-scrutiny" phase. The scrutineers tally the votes and determine whether there's a winner. We're not done yet, though.

The revisers verify the entire process: ballots, tallies, everything. And then the ballots are burned. That's where the smoke comes from: white if a pope has been elected, black if not -- the black smoke is created by adding water or a special chemical to the ballots.

Being elected pope requires a two-thirds plus one vote majority. This is where Pope Benedict made a change. Traditionally a two-thirds majority had been required for election. Pope John Paul II changed the rules so that after roughly 12 days of fruitless votes, a simple majority was enough to elect a pope. Benedict reversed this rule.

How hard would this be to hack?

First, the system is entirely manual, making it immune to the sorts of technological attacks that make modern voting systems so risky.

Second, the small group of voters -- all of whom know each other -- makes it impossible for an outsider to affect the voting in any way. The chapel is cleared and locked before voting. No one is going to dress up as a cardinal and sneak into the Sistine Chapel. In short, the voter verification process is about as good as you're ever going to find.

A cardinal can't stuff ballots when he votes. The complicated paten-and-chalice ritual ensures that each cardinal votes once -- his ballot is visible -- and also keeps his hand out of the chalice holding the other votes. Not that they haven't thought about this: The cardinals are in "choir dress" during the voting, which has translucent lace sleeves under a short red cape, making sleight-of-hand tricks much harder. Additionally, the total would be wrong.

The rules anticipate this in another way: "If during the opening of the ballots the scrutineers should discover two ballots folded in such a way that they appear to have been completed by one elector, if these ballots bear the same name, they are counted as one vote; if however they bear two different names, neither vote will be valid; however, in neither of the two cases is the voting session annulled." This surprises me, as if it seems more likely to happen by accident and result in two cardinals' votes not being counted.

Ballots from previous votes are burned, which makes it harder to use one to stuff the ballot box. But there's one wrinkle: "If however a second vote is to take place immediately, the ballots from the first vote will be burned only at the end, together with those from the second vote." I assume that's done so there's only one plume of smoke for the two elections, but it would be more secure to burn each set of ballots before the next round of voting.

The scrutineers are in the best position to modify votes, but it's difficult. The counting is conducted in public, and there are multiple people checking every step. It'd be possible for the first scrutineer, if he were good at sleight of hand, to swap one ballot paper for another before recording it. Or for the third scrutineer to swap ballots during the counting process. Making the ballots large would make these attacks harder. So would controlling the blank ballots better, and only distributing one to each cardinal per vote. Presumably cardinals change their mind more often during the voting process, so distributing extra blank ballots makes sense.

There's so much checking and rechecking that it's just not possible for a scrutineer to misrecord the votes. And since they're chosen randomly for each ballot, the probability of a cabal being selected is extremely low. More interesting would be to try to attack the system of selecting scrutineers, which isn't well-defined in the document. Influencing the selection of scrutineers and revisers seems a necessary first step toward influencing the election.

If there's a weak step, it's the counting of the ballots.

There's no real reason to do a precount, and it gives the scrutineer doing the transfer a chance to swap legitimate ballots with others he previously stuffed up his sleeve. Shaking the chalice to randomize the ballots is smart, but putting the ballots in a wire cage and spinning it around would be more secure -- albeit less reverent.

I would also add some kind of white-glove treatment to prevent a scrutineer from hiding a pencil lead or pen tip under his fingernails. Although the requirement to write out the candidate's name in full provides some resistance against this sort of attack.

Probably the biggest risk is complacency. What might seem beautiful in its tradition and ritual during the first ballot could easily become cumbersome and annoying after the twentieth ballot, and there will be a temptation to cut corners to save time. If the Cardinals do that, the election process becomes more vulnerable.

A 1996 change in the process lets the cardinals go back and forth from the chapel to their dorm rooms, instead of being locked in the chapel the whole time, as was done previously. This makes the process slightly less secure but a lot more comfortable.

Of course, one of the infirmarii could do what he wanted when transcribing the vote of an infirm cardinal. There's no way to prevent that. If the infirm cardinal were concerned about that but not privacy, he could ask all three infirmarii to witness the ballot.

There are also enormous social -- religious, actually -- disincentives to hacking the vote. The election takes place in a chapel and at an altar. The cardinals swear an oath as they are casting their ballot -- further discouragement. The chalice and paten are the implements used to celebrate the Eucharist, the holiest act of the Catholic Church. And the scrutineers are explicitly exhorted not to form any sort of cabal or make any plans to sway the election, under pain of excommunication.

The other major security risk in the process is eavesdropping from the outside world. The election is supposed to be a completely closed process, with nothing communicated to the world except a winner. In today's high-tech world, this is very difficult. The rules explicitly state that the chapel is to be checked for recording and transmission devices "with the help of trustworthy individuals of proven technical ability." That was a lot easier in 2005 than it will be in 2013.

What are the lessons here?

First, open systems conducted within a known group make voting fraud much harder. Every step of the election process is observed by everyone, and everyone knows everyone, which makes it harder for someone to get away with anything.

Second, small and simple elections are easier to secure. This kind of process works to elect a pope or a club president, but quickly becomes unwieldy for a large-scale election. The only way manual systems could work for a larger group would be through a pyramid-like mechanism, with small groups reporting their manually obtained results up the chain to more central tabulating authorities.

And third: When an election process is left to develop over the course of a couple of thousand years, you end up with something surprisingly good.

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The opinions expressed in this commentary are solely those of Bruce Schneier.

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