AGHDAD, Iraq, Dec. 14 — The wild gray beard was gone, and he sat on a metal army cot, just awake from a nap, in socks and black slippers. He was not handcuffed. He did not recognize all his visitors, but they recognized him. That was the purpose of the visit: to help confirm that he was, in fact, Saddam Hussein. What came next in the Sunday afternoon meeting, according to people in the room, was an extraordinary 30 minutes, in which four new leaders of Iraq pointedly questioned the nation's deposed and now captured leader about his tyrannical rule....