Chechen killed by FBI in Boston probe was 'unarmed'
A Chechen man shot dead by the FBI during questioning on his links to the Boston Marathon bombers was unarmed.
Man killed by FBI links Tsarnaev to triple murder: media
A friend of Tamerlan Tsarnaev implicated himself and the Boston bombing suspect in an unsolved triple homicide before FBI agents killed him in a violent altercation Wednesday.
Woman fugitive makes US 'most wanted terrorist' list
A woman who killed a police officer 40 years ago and later fled to Cuba has been placed on the FBI's list of "most wanted terrorists".
US releases pictures related to Benghazi attack
US authorities on Wednesday released pictures of three men it said were present during the September 11, 2012 attack on the US mission in eastern Libya, saying it wanted to question them.
Three charged with Boston bombing cover-up
Three 19-year-old friends of one of the alleged Boston bombers were charged Wednesday with trying to cover his tracks by throwing out fireworks and a laptop and then lying to US police.
Still 'persons of interest' in Boston probe: lawmakers
Investigators are pursuing other "persons of interest" who may be linked to the deadly bombings at the Boston Marathon.
Boston suspects planned Times Square attack: NY mayor
The brothers accused of staging the Boston Marathon bombings planned to detonate more explosives in Times Square as they were being hunted by police.
CIA, FBI flagged Boston suspect
Both the CIA and the FBI flagged the deceased Boston bombing suspect over possible terror ties, but he slipped through the fingers of investigators.
US 'pinged' when Boston suspect flew to Russia
US lawmakers learned Tuesday that security monitors "pinged" when a Boston bombing suspect flew to Russia last year, as concerns grew about possible intelligence sharing failures.
Trail of blood led to Boston marathon bomber
A trail of blood led to accused Boston Marathon bomber Dzhokhar Tsarnaev as he hid inside a boat after eluding one of the biggest manhunts ever staged in the United States.
FBI releases video of Boston bomb suspects
The FBI released pictures and video on Thursday of two men suspected of planting the Boston marathon bombs, appealing for help to identify the pair who were carrying large backpacks.
Suspect arrested in US over Obama ricin letter
A letter addressed to President Barack Obama tested positive for ricin, and authorities arrested a suspect, stoking alarm in Washington on Wednesday after an earlier scare over poisoned mail.
Range of suspects 'wide open' in Boston bombings: FBI
There have so far been no claims of responsibility for the deadly Boston bombings, and investigators are considering a wide range of suspects.
Google says FBI watching the Web
Google says the FBI is monitoring the Web for potential terrorist activity. But it can't confirm the extent of the surveillance.
FBI examining possible Heinz insider trades
The FBI is examining possible insider trading in Heinz shares ahead of last week's buyout announcement, after US regulators identified suspicious trades from a Swiss account.
Official addresses electronic equipment at 9/11 hearing
Guantanamo's top security official said Wednesday that intelligence agents had bugged rooms where the accused 9/11 plotters meet with their lawyers, despite a ban on eavesdropping.
Awlaqi may have bought hijackers pre-9/11 tickets: report
The FBI suspected that US-born Al-Qaeda cleric Anwar al-Awlaqi, killed in a 2011 drone strike in Yemen, could have bought air tickets for three of the 9/11 hijackers before the attacks.
US fears more victims from dead 'serial killer'
The FBI is appealing for information about the travels of a suspected serial killer believed to have murdered up to 15 people over more than a decade, after his suicide in jail last weekend.
Obama backs Allen over Petraeus sex scandal
President Barack Obama backed the commander of US forces in Afghanistan on Tuesday after the top general was dragged into the sex scandal that brought down CIA director David Petraeus.
FBI agents search home of Petraeus's lover
FBI agents searched the home of the woman at the center of a sex scandal behind David Petraeus's decision to step down as head of the Central Intelligence Agency.