Secret cables reveal that U.S. believes Iran has advanced missiles

The United States believes Iran has obtained advanced missiles from North Korea that could reach Moscow and cities across Western Europe, one of several secret diplomatic assessments of Iran's weapons program disclosed publicly for the first time Sunday.

U.S. strips intelligence analyst of security clearance and job but won't say why

Eighteen months ago, John Dullahan was an intelligence analyst with a long and varied career in both the military and the classified world. Today, he is jobless and blacklisted from the federal workforce, his loyalty to the United States, he says, brought into question.

U.S. may replace color-coded terror-alert system with more-specific warnings

The Obama administration is considering abandoning the color-coded terrorism-alert system that became a barometer of the nation's anxieties after the Sept. 11, 2001, attacks and replacing it with advisories that provide more detailed guidance on emerging threats.

Analysis: Verdict dims outlook for civilian trials of terrorism detainees

What was a very bad day for Ahmed Ghailani, now a convicted felon likely to spend many years in a supermax prison, was also, because of the super-charged politics surrounding Guantanamo Bay, a pretty bad day for the Obama administration.

An intricate plot unleashed in Mumbai, the West confronts a new threat

David Coleman Headley seemed like a gregarious, high-rolling American businessman when he set up shop in Mumbai in September 2006. But it was all a front. As Headley confessed in a guilty plea in U.S. federal court this year, he was in Mumbai to begin undercover reconnaissance for a sophisticated attack that would take two years to plan.

On the trail of Pakistani terror group's elusive mastermind behind the Mumbai siege

On a November night two years ago, a young American rabbi and his pregnant wife finished dinner at their home in the mega-city of Mumbai.

Package bomb could have downed plane over Canada, data show

One of the two package bombs intercepted late last month would have exploded over a largely unpopulated area of Canada if it had detonated, according to flight data and new information released Wednesday by the British police.

No charges in destruction of CIA videotapes, Justice Department says

The Justice Department will not file criminal charges over the destruction of CIA videotapes depicting the harsh interrogation of terrorism suspects, limiting the legal fallout from one of the Bush administration's most fraught legacies, officials said Tuesday.

In interview, Bush defends Iraq war and waterboarding

In his first major interview since leaving office, former president George W. Bush defended the most controversial aspects of his tenure - including the use of waterboarding against terrorism suspects and the invasion of Iraq.

Vets with PTSD train dogs to help comrades

Rick Yount and his golden retriever puppy, Gabe, had separation issues every morning. "The dog kept looking at me at the door with those sad eyes, and finally it was just impossible to resist," Yount recalled. So one morning, "I decided to take him with me."

In Richmond, a Civil War expert seeks to emancipate history's narrative

W hen the young Edward Ayers left his Tennessee home for Yale to study history, his mama asked him why. "You already know what happened," she said.