Matt Apuzzo

EDITOR'S NOTE: Whether for athletics or age, Americans from teenagers to baby boomers are trying to get an edge by illegally using anabolic steroids and human growth hormone, despite well-documented risks. This is the first of a two-part series.

WASHINGTON — With steroids easy to buy, testing weak and punishments inconsistent, college football players are packing on significant weight — 30 pounds or more in a single year, sometimes — without drawing much attention from their schools or the NCAA in a sport that earns tens of billions of dollars for teams.

NEWTOWN, Conn. -- The gunman in the Connecticut shooting rampage shot his mother four times in the head before going to the school and gunning down 26, authorities said Sunday as details emerged suggesting that Adam Lanza had planned an even more gruesome massacre but was stopped short.

WASHINGTON -- Last month, U.S. intelligence learned that al-Qaida's Yemen branch hoped to launch a spectacular attack using a new, nearly undetectable bomb aboard an airliner bound for America, officials say.

But the man the terrorists were counting on to carry out the attack was actually working for the CIA and Saudi intelligence, U.S. and Yemeni officials told The Associated Press on Tuesday.

WASHINGTON -- Letters from Osama bin Laden's last hideaway, released by U.S. officials intent on discrediting his terror organization, portray a network weak, inept and under siege -- and its leader seemingly near wit's end about the passing of his global jihad's glory days.

The documents, published online Thursday, are a small sample of those seized during the U.S. raid on bin Laden's Pakistan compound in which he was killed a year ago. By no accident, they show al-Qaida at its worst. The raid has become the signature national security moment of Barack Obama's presidency and one he is eager to emphasize in his re-election campaign.

WASHINGTON — Three months ago, one of the CIA’s most experienced clandestine operatives started work inside the New York Police Department. His title is special assistant to the deputy commissioner of intelligence. On that much, everyone agrees.

WASHINGTON -- An American-born cleric killed in Yemen played a "significant operational role" in plotting and inspiring attacks on the United States, U.S. officials said Friday, as they disclosed detailed intelligence to justify the killing of a U.S. citizen.

Anwar al-Awlaki was killed early Friday in a strike on his convoy carried out by a joint operation of the CIA and the U.S. Joint Special Operations Command, according to counterterrorism officials. Al-Awlaki had been under observations for three weeks while they waited for the right opportunity to strike.