A courtroom sketch of Sept. 11 attack co-defendants during a hearing at the U.S. Naval Base, in Guantanamo Bay Cuba

In this photo of a sketch by courtroom artist Janet Hamlin, reviewed by the U.S. Military, Sept. 11, 2001 attack co-defendants Khalid Sheikh Mohammed (2nd L) and Waleed Bin Attash (L) sit during a hearing at the U.S. Military Commissions court for war crimes, at the U.S. Naval Base, in Guantanamo Bay, Cuba, January 19, 2009. REUTERS/Janet Hamlin/Pool