A Saudi suspected of being the "20th hijacker" in the Sept. 11 attacks has recanted his confession, saying he made false statements after he was beaten, abused and humiliated at Guantanamo, according to documents obtained Friday by The Associated Press. Mohammed al-Qahtani — who U.S. officials have said previously was subjected to harsh treatment authorized by former Defense Secretary Donald H. Rumsfeld — denied knowledge of the Sept. 11 attacks in his first appearance before a military panel at Guantanamo Bay in October. "I am a businessman, a peaceful man," al-Qahtani testified under oath, nearly five years after he was...