Just how damning are allegations by Congressman Curt Weldon that a secret Pentagon intelligence operation pegged hijacker Mohammed Atta as a threat nearly two years before he led the 9/11 attacks?

PRAGUE Mohamed Atta, the leader of the September 11 hijackers, visited Prague twice in the fifteen months before the terrorist attacks on the World Trade Center and Pentagon, in June 2000 and April ...

UNITED NATIONS -- Despite U.S. denials, the Czech government stands by its account that a suspected Iraqi intelligence agent met Sept. 11 hijacker Mohammed Atta in Prague last year, a senior Czech ...

Edward Jay Epstein describes how Able Danger's data miners could indeed have come up with Atta's name--the "real" 9/11 Atta's name--by cross-checking various databases in fairly obvious ways. Since ...

In this series, Newsweek maps the road to 9/11 as it happened 20 years ago, day by day. German citizen Said Bahaji purchased an airline ticket on August 20, to leave Hamburg for Karachi, Pakistan via ...

C A I R O, Egypt, Sept. 18 -- The father of Mohamed Atta expressed disbelief that his son could have been one of the suicide terrorists who forced a plane into the World Trade Center. Yet, in an ...

The United Arab Emirates' banking practices are under review after government officials said they believe the financial system was used as a transfer point for the suspects of the September 11 attacks ...

Oct. 4 -- Mohammed Atta, a suspected ringleader of the Sept. 11 attacks who is believed to have piloted the first plane that struck the World Trade Center, left behind a will with a list of strict ...

In the 10 days leading up to the Sept. 11 hijackings, ringleader Mohamed Atta received at least two wire transfers of cash from Egypt through a small Florida money-wiring business, sources tell TIME.

(CBS/AP) Sept. 11 plot mastermind Khalid Shaikh Mohammed originally envisioned an attack involving 10 hijacked planes with himself as the pilot of one in which all male passengers would be killed and ...