Each day more than 55 million students attend the country's 130,000 schools.

The Senate Judiciary Committee approved the bipartisan "Gang of Eight" immigration reform bill on Tuesday, sending the measure to the Senate floor for further consideration and giving the bill's backers their first major legislative victory.

The schoolchildren were looking forward to going home -- playing with friends, eating snacks. Then they found themselves fighting for their lives. Some lost. FULL STORY

Every issue in the Michael Jackson wrongful death trial is so disputed that even giving candy to jurors caused an argument.

No new survivors have been found since Monday, but loved ones are still missing, and each hour brings more sobering news about the deadly Okla. tornado. FULL STORY

The jury in the Jodi Arias trial has one decision left to make: Should she live or die?

The powerful storm system behind the twister that ravaged Moore, Oklahoma, set its sights on the Great Lakes and Tennessee Valley on Wednesday, forecasters said.

The tornado that ripped through Oklahoma City suburbs spanned 1.3 miles and earned the highest rating on the scale that measures tornado intensities. FULL STORY

Former U.S. Rep. Anthony Weiner is running for New York City mayor, he announced Wednesday morning in a video posted on his campaign website.

The twister turned Briarwood Elementary School to rubble, but no one was killed. "His teacher saved his life," a student's grateful mom said. FULL STORY

A family who lost their beloved nine-year-old girl in the Oklahoma tornado speaks with Anderson Cooper.

Nathan Gunters says Okies have learned to love the big sky, but also to watch it carefully for signs of trouble. When the sky betrays us, we cope by helping one another.

Anderson Cooper talks with a teacher who helped her student reunite with his mother after the Oklahoma tornado.

At least 24 people -- including nine children -- were killed when a massive tornado struck an area outside Oklahoma City on Monday afternoon, officials said.

The tornado that smashed homes, schools and businesses in a 17-mile stretch of central Oklahoma on Monday took dozens of lives.

The National Weather Service's Paul Schlatter explains how tornadoes grow into destructive storms.

Tornado researcher says progress is being made on understanding and predicting extreme storms, but if you hear a warning, take cover immediately

A last-minute decision to leave the house saves a mother and toddler from the massive Oklahoma tornado.

CNN's Jake Tapper compares the massive tornado in 1999 that tore through Oklahoma to the 2013 storm.

Photographer Paul Hellstern snapped his shutter just minutes after the tornado reduced Oklahoma City's Briarwood Elementary School to rubble.

The governor of Oklahoma, Mary Fallin, says it is "hard to believe" another monster tornado could devastate the Oklahoma City suburb of Moore.

One of the children whose school was destroyed in the Oklahoma tornado talks about his joyful reunion with a neighbor.

While checking her ticket at the store, one St. Louis County, Missouri, woman finds out she won a million dollars

A series of deadly storms that pummeled Arkansas, Missouri and other states this week reminds us that tornado season is upon us once again.

Sixteen minutes elapsed between the time the National Weather Service issued a tornado warning and the time a tornado touched down near Newcastle, Oklahoma, on Monday afternoon. It would be another 19 minutes before the twister would devastate the nearby city of Moore.

It's no surprise that travelers flock to Paris, New York and London.

CNN's Tom Foreman explains the strength of the tornado in Oklahoma and why some buildings couldn't withstand the force.

The Army has suspended the top general at Fort Jackson in South Carolina due to allegations of adultery and assault, an Army spokesman says.

Student tells story of surviving tornado that flattened her school, Plaza Towers Elementary School.

A day after local police said they are ending their 3½-year search for a missing Utah woman, her father and his attorney told reporters that federal agents and private investigators are now on the case.

Storm chasers capture the magnitude and devastation of the tornado that leveled Moore, Oklahoma.

CNN's Ed Lavandera reports on a teen battling terminal cancer with a song and a smile.

How are tornadoes formed, why are they categorized after they strike and where is "Tornado Alley"? CNN explains.

If spared the death penalty, convicted murderer Jodi Arias says she will make her life in prison worthwhile.

Amid downed power lines, hissing gas pipes and immense devastation, rescuers searched "board by board" Tuesday for survivors and victims of a massive tornado that pulverized a vast swath of the Oklahoma City suburbs.

A woman who survived the devastating tornado in Oklahoma finds her dog buried under rubble during an interview with CBS.

The former head of the IRS said Tuesday that he was aware of some aspects of his agency's targeting of conservative groups in the spring of 2012, and took what he called the correct action of ensuring the situation would be independently reviewed.

A man killed himself inside the Notre Dame Cathedral in Paris on Tuesday, police said.

Storm survivors come together to try and rescue other victims trapped under the rubble. CNN Affiliate KFOR was there.

Students emerge from Briarwood Elementary moments after a massive storm ripped through Moore, Oklahoma.

CNN's Pamela Brown reports on the schools destroyed by a devastating tornado in Moore, Oklahoma.

As Moore, Oklahoma, struggles to regain its footing under the public spotlight, journalists from CNN are among those sharing online images of the devastation of a deadly tornado, as well as the rescue and recovery efforts there.

It's already killed scores of people in a massive tornado that devastated the town of Moore, Oklahoma. And it's not over yet.

Whether Jodi Arias lives or dies is now in the hands of a jury. She will address its members directly Tuesday morning. Arias said earlier this month that she would rather die than endure a lifetime behind bars.

After her conviction, Jodi Arias takes the stand as testimony continues in the punishment phase of her murder trial.

Sun was hard to come by in Moore, Oklahoma, Tuesday. The sky still looked menacing, dark and foggy. Mist turned to rain. Lightening struck.

iReporter Jeff Lechus talks about driving to pick up his son from school as a tornado hit the area.

For the second day in a row, violent storms have ripped through America's heartland.

Joseph Nye says history shows that external events can shape the carefully laid plans of presidents in a final term, even when scandal intervenes

CBS decided to pull Monday night's season finale of Mike & Molly, which talks about a tornado hitting Chicago (though no devastation was going to be shown).

A month after being released to mostly positive reviews, Samsung's flagship phone is getting some validation from Consumer Reports. The publication has run all its tests, kicked the phone's tires, and named the Android-powered Galaxy S4 its top rated smartphone.

OWordless picture books have had a big few years. The latest example, Bob Staake's "Bluebird," follows a lonely boy and his bluebird friend.

Being nice to others and cooperating with them aren't uniquely human traits. Frans de Waal, director of Emory University's Living Links Center at the Yerkes National Primate Research Center in Lawrenceville, Georgia, studies how our close primate relatives also demonstrate behaviors suggestive of a sense of morality.

News of Angelina Jolie's decision to undergo a prophylactic double mastectomy has instantly increased awareness of hereditary forms of cancer caused by mutations in the BRCA1 and BRCA2 genes.

You probably feel pretty attached to your memories -- they're yours, after all. They define who you are and where you came from, your accomplishments and failures, your likes and dislikes.

For decades, Dr. Eric Kandel has studied, at the molecular level, how we create short-term and long-term memories.

Dr. Alfred Brann's mother died giving birth to him. He's worked his entire life to ensure that moms and their babies have the best chance of survival.

Jodi Arias' defense team is not going to call any witnesses in the sentencing portion of her trial.

The jetliner completes its first domestic commercial flight after being grounded because of fears of onboard battery fires.

Police say an 18 yr-old girl violated her 14 yr-old girlfriend, but one group is petitioning officials to drop charges.

Monday afternoon's devastating tornado in the Oklahoma City suburbs brought to mind a May 1999 E5 twister that killed 36 people and smashed some of the same communities.

A dolphin located a Howell torpedo that was one of 50 produced in the 1880s. KGTV's Bob Lawrence reports.

Bill Nye talks to Piers Morgan about tornadoes and the chance something like the Moore, Okla. tornado could happen again.

Yahoo's purchase of hot blogging platform Tumblr, which it announced Monday, was big news for the hundreds of millions of folks who already post to the site or check in to follow those who do.

The Doors' founding keyboardist, Ray Manzarek, died in Germany Monday after a long fight with cancer, his publicist said in a statement. He was 74.

Kids screamed for their parents and parents hollered their children's names, walking and searching in panic in the parking lot of Briarwood Elementary in Moore, Oklahoma. The tornado that wrecked their town had just left. The sky behind them was still dark. Rain fell in a light mist.

New details emerged of what the White House knew about the Internal Revenue Service targeting of conservative groups, with spokesman Jay Carney disclosing Chief of Staff Denis McDonough was among the top officials made aware of the matter late last month.

A glass microscope slide with a trace of the late Indian independence leader Mahatma Gandhi's blood is among an array of memorabilia due to be sold at auction Tuesday in England.

CNN's George Howell speaks with a worker helping with the Plaza Towers Elementary school rescue and recovery efforts.

CNN's Tom Foreman highlights the path of a destructive tornado through Moore, Oklahoma.

Sonali Mukherjee is still fighting for justice 10 years and 27 surgeries after an acid attack. Sumnima Udas reports.

Ali Ferzat, the Syrian cartoonist whose hands were injured by pro-Assad forces after he drew a cartoon critical of the regime, remains undaunted in exile and convinced that he will live and draw in Syria again.

CNN's Hala Gorani reports on a close encounter between a bear and a video camera and some amazing video footage.

CNN's Pamela Brown talks to a woman who texted her family to say she loved them as her plane crash-landed.

Canadian singer Alexis Normand botches a rendition of the U.S. national anthem prior to a Memorial Cup hockey game.

R&B singer Miguel accidentally struck a woman in the face during his performance at the Billboard Music Awards.

Viewer discretion: Surveillance footage shows a thief survive being hit by a bus after stealing a cell phone.

As search and rescue operations continue in the aftermath of Oklahoma, survivors share their stories.

Several people share how they rode out Monday's deadly tornado in Moore, Oklahoma.

CNN's Piers Morgan talks with Michael Welch who witnessed the deadly storm that hit Moore, Oklahoma.

A Moore, Oklahoma resident rescued his neighbor after he heard him shouting for help from beneath the rubble.

The National Weather Service declares a tornado emergency as a massive storm hits Oklahoma.

Students of Briarwood Elementary are reunited with their parents after a deadly tornado tore through the area.

CNN's Gary Tuchman reports from the elementary school where workers continue to search the rubble after Monday's storms

At 17, Sonali Mukherjee had everything going for her. She was a beautiful, intelligent and ambitious young woman, dedicated to excelling in her studies.

Aviation fans have already named it Dreamliner 2.0.

A rash of tornadoes destroyed homes and tossed trees around like toothpicks as it ripped through Oklahoma and the Midwest on Sunday and Monday.

Hear and see the massive tornado that struck near Oklahoma City, Oklahoma.

Jim Heston, an American guesthouse operator in Cambodia, has lived a life in denim and has the photos to prove it. There were the dungarees he wore as a little boy, the dark bell-bottoms he had on for a hike up Japan's Mount Fuji, and the Levis straight-leg 501 jeans he's stayed with for the past 36 years.

CNN's Wolf Blitzer shows devastation to the Plaza Towers Elementary school as a result of the tornado that hit Oklahoma.

Two survivors of the Oklahoma tornado describe the twister to CNN's Nick Valencia.

CNN affiliate KFOR talked to one of the survivors of Monday's tornado as he took his first look at the damage.

See a massive tornado break up over Oklahoma City. Affiliate KFOR has pictures.

It's one thing to use Twitter for harmless fights, but Dean Obeidallah says there's no excuse for racist, sexist, or homophobic rants

CNN's Chad Myers and Jake Tapper discuss severe damage to a school as a result of the tornado that hit Oklahoma.

Meteorologist Chad Myers describes the scene as the first pictures of devastation in Oklahoma City start to come in.

Anchors at CNN affiliate KSN were forced to evacuate during a live broadcast as a tornado approached Wichita, Kansas.

A firefighter was killed Monday during a six-alarm blaze at a Dallas condominium complex, the city's fire department said.

Five occupants of a church van were killed when it crashed Monday morning in Vandalia, Illinois, according to Deputy Shawn Carter with the Fayette County Sheriff's Office.

Telecommuting and carpooling are the recommended options for folks who would normally take the train between New Haven, Connecticut, and New York in the aftermath of a derailment that disrupted train service on one of the busiest tracks in the country.

A grizzly bear cub tries to take a bite out of a wildlife photographer's GoPro camera. CNN's Early Start has more.

President tells Morehouse College grads: "It is not just the African-American community that needs you. The country needs you. The world needs you."

Ted Rowlands reports on how tough it is for jurors to decide on death penalty cases, in light of the Jodi Arias trial.

Bruce Schneier says our government has lots of unneeded and ineffective security measures.

Elizabeth Dunn and Michael Norton write that people pass up opportunities to spend their money to avoid disagreeable tasks

In recent weeks, Google Glass has been distributed to its first group of beta testers outside Google and in the real world. As the pool of new smart-glass wearers grows, they are feeling out the etiquette of using the new technology.

Zach Sobiech, 18, passed away this morning, surrounded by family and loved ones.

Singer Justin Bieber is booed during his speech at the Billboard Music Awards. CNN's Nischelle Turner has more.

At least one performer fell hard for Sunday night's Billboard Music Awards.

Giant African land snails pose a big threat to Florida. CNN's John Zarrella explains why.

Meg Urry says loss of the planet-finding Kepler satellite would be huge for NASA, which is furiously trying to fix it--but one way or another, it's a matter of time before we find signs of life on other worlds

CNN's Zoraida Sambolin reports on a wife's "big surprise" for her husband after he comes back from Afghanistan.

President Obama delivers the commencement address to the 2013 graduates of Morehouse College in Atlanta.

One person was killed and at least 18 were injured when hot air balloons collided in mid-air in Turkey.

A tiny device that can recharge cell phone batteries in as little as 30 seconds won 18-year-old Eesha Khare a major science award that will help fund her college education at Harvard University.

Prince wowed the audience at the Billboard Awards with renditions of "Let's Go Crazy" and "Fix Ur Life Up."

A 27-year-old graphic designer has made history by becoming the first Saudi woman to conquer Mount Everest.

AEG Live filed an insurance claim to recover losses from Michael Jackson's death the same day he died, according to a lawyer for Jackson's family.

Mireille Kibibi's march to the graduation stage at Berry College was tough -- laden with the burdens of war.

Sunday's graduation ceremony at Hofstra University was a bittersweet affair marked by a moment of silence for a 21-year-old student killed by a police officer two days ago.

President Barack Obama speaks to graduates at Morehouse College in Atlanta. He makes fun of the rainy weather.

A magnitude 6.8 earthquake rattled the coast of southern Chile early Monday, the U.S. Geological Survey reported.

Julian Zelizer says that Obama, like many before him, chose to work within the system to get things done rather than lead transformative change.

Set aside what you think you know about garment factories in Bangladesh.

North Korea on Monday fired a projectile into the sea off its east coast, the fifth in three days, South Korea said.

Actor Justin Bartha describes an intimate waxing experience he had while filming his latest movie about former club CBGB.

The FBI is mourning the deaths of two special agents killed Friday during a training exercise off the coast of Virginia Beach, Virginia.

"Saturday Night Live" pressed the hot topic issues from this controversial week for President Obama and the IRS.

The million-dollar questions have been answered. What are the Powerball numbers, and have any winning tickets been sold?

Several HLN jurors cry, others turn away at the sight of a photograph of Travis Alexander's slashed throat.

John Tlumacki shot some of the most dramatic images of the Boston Marathon bombings.

Anderson Cooper shares a product helping tech-savvy parents get their urine-soaked baby to alert them via social media.

A Wisconsin bar has a unique collection of bras hanging on the ceiling but was recently forced to take them down.

Miami Heat's Dwyane Wade surprises a Florida teen who asked him to her prom via YouTube.

Two men who the Iranian government said worked as spies for Israel and the United States were hanged Sunday morning, according to Iranian state news outlet Press TV.

Anthony Bourdain discovers an American-style fast-food restaurant that opened in Libya after the revolution.

CNN's Anderson Cooper made an appearance in a goodbye skit for Bill Hader on "Saturday Night Live."

A deer crashed through a bus windshield and then tried to find a way off. WTAJ reports.

Check out these best friends having a great time together.

CNN's Carl Azuz details how good service landed a waitress an extraordinary tip.

A suicide attack in northern Afghanistan on Monday morning killed at least 11 people, including the head of the local provincial government, police said.

A barrage of car bombings and shootings across Iraq left at least 32 people dead, authorities said Monday.

Boeing restarts 787 Dreamliner commercial flights, as CNN's Leone Lakhani reports.

During the civil rights struggle, Birmingham canceled high school prom for many black teenagers. This weekend, the dance went on for the Class of 1963.

1 death in Pottawatomie County State of emergency in Oklahoma Tornado touches down in Missouri FULL STORY

Philip Jennings of UNI Global Union on the retailers' decision not to sign a deal to improve conditions in Bangladesh.

CNN's Leone Lakhani has an interview with a young woman rescued from a building 17 days after it collapsed.

Garment factories are open for business after the tragic factory collapse in Bangladesh. CNN's Leone Lakhani reports.

"Save me!" a man's voice cries out in the darkness. "Please save me!"

I first saw the headline early Tuesday on Real Clear Politics, a political news site where I generally start my morning. It's not where I expect to see a story on breast cancer.

After tornadoes rip through Oklahoma, the damage is assessed.

Following Libya's revolution, oil production has been restored and the country has slipped from the front pages.

Tornadoes damage homes and businesses in rural Oklahoma.

Anthony Bourdain visits the Misrata War Museum in Libya to check out some homemade weapons used in the 2011 civil war.

Watch a possible tornado near Wellston, Oklahoma.

Photon torpedoes and proton torpedoes. Warp speed and hyperspace.

Nine people remained in the hospital -- one in critical condition -- two days after a commuter train derailed and struck another train on one of the busiest tracks in the country, officials said Sunday.

Two FBI special agents were killed Friday during a training exercise off the coast of Virginia Beach, Virginia, the bureau said in a statement released Sunday.

A young Alaskan grizzly bear chews on a GoPro camera.

A group of seniors who couldn't attend prom in 1963 get a second chance to attend in 2013.

A meteoroid struck the surface of the moon recently, causing an explosion that was visible on Earth without the aid of a telescope, NASA reported Friday. But don't be alarmed if you didn't see it; it only lasted about a second.

NASA reports a boulder sized meteoroid slammed the surface of the moon igniting a bright lunar explosion.

Man who charged elephant spared life, but not job. CNN's Jeanne Moos reports.

Pakistani politician Zahra Shahid Hussain, who alleged vote rigging in Karachi, was shot to death Saturday on the eve of a highly contested re-run of balloting in her district, police said.

On today's date in 1780, midday turned into midnight in New England, spreading panic. Bob Greene asks if we would be as frightened today, even knowing the cause of the darkness?

Oxbow, a longshot ridden by Gary Stevens, won the 138th running of the Preakness Stakes today. Kentucky Derby winner Orb came in fourth, ending a shot at the Triple Crown. FULL STORY

CNN's Poppy Harlow has the latest on the Hofstra student that may have been mistakenly shot by police.

The press has turned on President Obama with a vengeance.

For all the unanswered questions about the Benghazi attack and the Obama administration crisis management in the hours and days after, this much is certain: The GOP-led investigations will carry over from spring into summer and likely beyond.

This week on "The Big Three," we take a look at what might have been Obama's worst week ever -- as a negative trifecta of scandals threaten to overwhelm his administration and derail his ambitious legislative agenda. We get a reality check with special guest, U.S. Rep. Keith Ellison. And no talk about the biggest stories of the week would be complete without a conversation about Angelina Jolie's decision to have a preemptive double mastectomy and the message it sends to millions.

An intruder wearing a mask invaded Andrea Rebello's home and put a gun to her head. A roommate slipped away and called for help. But after Nassau County police arrived things went terribly wrong. FULL STORY

North Korea fired a short-range missile into the Sea of Japan on Sunday, according to South Korea's semiofficial news agency Yonhap, citing a South Korean military official.

A former "top cop," who had the honor of sitting next to first lady Michelle Obama during a televised presidential speech four years ago, is facing rape allegations.