The National Security Agency has been collecting the telephone records of millions of U.S. customers under a court order, according to reports.

Suspect's parents have held fast to their belief that their sons were framed for the April 15 bombings killed three people and wounded more than 260.

Federal prosecutors still considering whether to pursue criminal case against hedge fund billionaire Steven A. Cohen and his SAC Capital Advisors.

An FBI statement said that the individual posed an 'imminent threat' as he was being questioned over links to Tamerlan Tsarnaev.

Prosecuting a State Department expert on North Korea by declaring that an American journalist disclosed leaked information illegally.

Police said it was suicide, but his parents insist he was murdered.

The Obama administration could seek an end to the debate over eavesdropping on the internet.

Dias Kadyrbayev and Azamat Tazhayakov face charges that they destroyed evidence linking Dzhokhar Tsarnaev to the bombings.

U.S. lawmakers demanding answers from security officials over Tsarnaev.

Suspect described role in attacks until being advised of right to silence, attorney.