Breaking News, Analysis, Politics, Blogs, News Photos, Video, Tech Reviews - TIME.comANDRES LEIGHTON/APDetainees pray in their cells at Guantanamo in 2002 Of the roughly 500 detainees held at the U.S. prison camp at Guantanamo Bay, Cuba, none is more notorious than Mohammad al-Qahtani, the so-called "20th hijacker." Only weeks before 9/11, he tried to enter the U.S. illegally in Orlando, Fla., while the plot's leader, Mohammad Atta, waited to pick him up in the airport parking lot
