Shots fired at Pentagon building; officials search for clues

Authorities searched Tuesday for a gunman who fired shots at the Pentagon in the early morning, possibly using a high-powered rifle. No one was injured.

Story of B-53 'bunker buster' is a lesson in managing nuclear weapons

Scout in Mumbai attacks was DEA informant while in terror camp, authorities say

Federal officials acknowledged Saturday that David Coleman Headley , the U.S. businessman who confessed to being a terrorist scout in the 2008 Mumbai attacks , was working as a Drug Enforcement Administration informant while training with terrorists in Pakistan.

Before '08 Mumbai attacks, U.S. was warned key figure in plot had terror ties

Three years before Pakistani terrorists struck Mumbai in 2008, federal agents in New York City investigated a tip that an American businessman was training in Pakistan with the group that later executed the attack.

Pakistan's judiciary threatens government stability

ISLAMABAD, PAKISTAN - After this country's then-military dictator deposed the Supreme Court chief justice in 2007, a boisterous movement of protesting lawyers took to the streets and ushered in the return of democracy. Now that same court may be poised to bring about a premature end to Pakistan'...

Senate report: Mismanaged U.S. contractor money aids enemy in Afghanistan

The U.S. military has only minimal knowledge of - and exercises virtually no control over - the thousands of Afghans it indirectly pays to guard its installations, including "warlords and strongmen linked to murder, kidnapping, bribery" and to the Taliban, Senate investigators said in a blisterin...

Justice Dept.'s National Security Division draws mixed reviews 4 years

Four years ago, the wall came tumbling down at the Justice Department.

Would-be Times Square bomber gets life in prison

The would-be Times Square bomber was sentenced to life in prison on Tuesday, bringing a quiet end to a case that dramatized what authorities say is a growing threat from domestic and global terrorists.

Is national security deputy Donilon moving up?

Who's got the best deputy job in Washington? It would have to be deputy national security adviser Tom Donilon. Donilon had been mentioned as a possible White House chief of staff, but now that the position has gone to Pete Rouse, history gives Donilon the nod to replace departing national securit...

Robert Edwards wins 2010 Nobel prize in medicine for in-vitro fertizilation

Robert G. Edwards's breakthrough development of in vitro fertilization, which led to the birth of the first "test-tube baby," Louise Brown, in 1978, gave humanity the power to do what previously was considered the province of God: create and manipulate human life.

U.S. issues travel alert for Americans in Europe as terrorism threat grows

The State Department issued a "travel alert" Sunday cautioning American travelers of potential dangers in Europe, while England raised its threat level for Germany and France to "high." The threat level for England had been raised earlier to "severe."