Defense

Lawmaker: al-Qaida bomb plot shows ‘new level of sophistication’

It's wrong to say the war on terrorism is over or al-Qaida is defeated, House Homeland Security chairman tells CNN.

Defense

Bomb plot underscores terrorist threat from Yemen

CIA foiled the plot and took possession of the bomb.

Defense

CIA reportedly foils al Qaeda underwear bomb plot

Attack was planned around last week's anniversary of Osama bin Laden's death, AP says.

Defense

Experts debate changing name of PTSD

American Psychiatric Association is thinking about calling it post-traumatic stress injury to reduce stigma.

Defense

Biden answers allegation in bin Laden documents

Vice president takes the high road on allegation he would be 'totally unprepared' to be president.

Defense

Congressional intelligence leaders say Taliban is stronger

President Obama argues the United States has broken the organization's momentum.

Defense

Military tribunal starts for 9/11 mastermind

Tribunal begins for five men accused in the 2001 attacks, including Khalid Sheikh Mohammed.

Defense

Obama reveals new details on bin Laden raid

Interview with Brian Williams of NBC marks the most comprehensive look yet at the decision-making involved in the raid.

Defense

One of two nearly censored bird flu papers published

U.S. voices national-security concerns over bird-flu findings.

Defense

Taliban announces 'spring offensive'

Annual campaign comes on the heels of President Obama's surprise visit to Afghanistan on Tuesday.

Defense

Mission accomplished -- at last?

Obama acknowledges the conflict in Afghanistan may never be completely over.

Defense

Video: Obama says goal he set for Afghanistan is within reach

'Over the last three year's the tide has turned,' he says.