Federal investigators said Thursday they have solved a mystery of the Sept. 11, 2001 attacks: the collapse of World Trade Center building 7, a source of long-running conspiracy theories.

A student fatally shot a 16-year-old classmate during a dispute Thursday at a Knoxville high school, as other teenagers watched in horror as the victim clutched his chest and fell to the floor.

Casey Anthony said nothing as she left the Orange County jail Thursday. She faces charges of child neglect, making false statements and obstructing an investigation.

Forecasters expected the storm to complete its zig-zag course by hitting the state for a third time in a week, along with Georgia, but didn’t think it would strengthen to a hurricane over the open waters.

Secretary of State Condoleezza Rice pressed Iraqi leaders Thursday to agree quickly to a U.S.-Iraq security deal that outlines the withdrawal of American troops, including a pull-out from cities by next June 30.

A Spanish airliner bound for the Canary Islands at the height of the vacation season crashed, burned and broke into pieces Wednesday while trying to take off from Madrid, killing 153 people on board, officials said.

She is almost as recognizable to viewers as her record-setting son, the many close-ups during Michael Phelps’ races making her the face of every parent.

The Army is mailing out thousands of letters to survivors of soldiers killed in Iraq and Afghanistan, asking what it can do to better help them, even years after the deaths of their loved ones.

Faced with losses that could near $1.5 billion this year, the U.S. Postal Service is offering early retirement - without incentives or bonuses - to thousands of clerks, mail handlers and supervisors.

St. Lucie County spokesman Erick Gill said water in some areas is waist-deep and is getting into homes, causing significant damage

President Bush says the breakaway provinces of South Ossetia and Abkhazia are part of Georgia and that the United States will work with allies to insure Georgia’s territorial integrity.

Some 46 million U.S. workers lack paid sick days

An Iraqi official says U.S. and Iraqi negotiators have finished a draft agreement that would see all American troops removed from Iraqi cities by June 30.

The number of fatal falls on the job rose to a high of 835 in 2007

The city is installing a rubber sidewalk at a spot near the Iowa State University campus where beer distributors unload hundreds of kegs from trucks for bars in the area.

Child Protective Services had asked Texas District Judge Barbara Walther to return the children to foster care, alleging their mothers refused to ensure they didn’t have contact with men accused of being involved in underage marriages.

Some Key West stores were shuttered, while others stubbornly remained open, and crews cleared sidewalks of newspaper boxes that could become airborne in high winds as Tropical Storm Fay headed for Florida after claiming as many as 35 lives in the Caribbean.

Children will walk farther to the bus stop, pay more for lunch, study from old textbooks and wear last year’s clothes. Field trips? Forget about it.

Secretary of State Condoleezza Rice is heading to Europe on Monday to talk with NATO allies about what message the West should send to Russia following its invasion of Georgia.

Days of heavy rain cause a dam at the Grand Canyon to collapse.

The three-judge panel has ruled the defendants are protected by sovereign immunity, and the plaintiffs would need to prove that the princes engaged in intentional actions aimed at U.S. residents.

“We have to realize that hypoxia is not a local problem,” said Robert J. Diaz of the Virginia Institute of Marine Science. “It is a global problem and it has severe consequences for ecosystems.”

Jurors rejected Continental Airlines flight attendant Sharon Brown’s claims that Victoria Osteen threw her against a bathroom door and elbowed her in the left breast while attempting to rush the cockpit because she was angry that a stain on her seat’s armrest was not quickly cleaned up.

In contrast to the tough talk, Condoleezza Rice rushed to the former Soviet republic with a new cease-fire plan offering concessions to Moscow.

Just six illegal immigrants volunteered to leave the United States in the first week of a pilot program inviting nearly a half-million people to self-deport, federal officials said.

Where do you look when you want to recruit spies? Just about everywhere, judging from the formerly top-secret records of the World War II agency that became today’s CIA.

The killer of Arkansas’ Democratic Party chairman had written his victim’s name on a Post-It note and had two sets of car keys from his victim’s car dealership

The Empire State Building is shining with Olympic spirit: Each of its top four sides are being lit with the different colors of 66 competing countries.

U.S. humanitarian aid arrives in Georgia.

A judge threw out murder and attempted murder charges Wednesday against seven New Orleans police officers accused of gunning down two men on a bridge in the chaotic aftermath of Hurricane Katrina.