Information in the files is largely from interrogations of detainees being held by the U.S. at Guantanamo Bay, Cuba. (Sept. 16, 2010, file photo taken at Guantanamo Bay.) John Moore/Getty Images hide caption
Sept. 11 attacks Sept. 11 attacks
Sept. 11, 2001: A firefighter walks through the rubble at New York's World Trade Center. Shawn Baldwin/AP hide caption