Khalid Sheikh Mohammed (right) and co-defendant Walid bin Attash attend a U.S. military hearing at the Guantanamo Bay Naval Base in Cuba on Saturday, May 5, 2012, in this sketch by courtroom artist Janet Hamlin. (AP Photo/Janet Hamlin, Pool)

Photo by: Janet Hamlin

Khalid Sheikh Mohammed (right) and co-defendant Walid bin Attash attend a U.S. military hearing at the Guantanamo Bay Naval Base in Cuba on Saturday, May 5, 2012, in this sketch by courtroom artist Janet Hamlin. (AP Photo/Janet Hamlin, Pool)