** FILE ** Canadian defendant Omar Khadr is shown at a hearing at the Camp Justice compound at Guantanamo Bay Naval Base in Cuba in this April 28, 2010, photo of a sketch drawn by courtroom artist Janet Hamlin and reviewed by a U.S. Department of Defense official. (AP Photo/Janet Hamlin, Pool, File)
** FILE ** In this Tuesday, June 27, 2006, photo reviewed by the U.S. Department of Defense, U.S. military guards walk within the Camp Delta detention center at the U.S. naval base at Guantanamo Bay, Cuba. (AP Photo/Brennan Linsley, File)