Peshawar, Pakistan -- During three years in Guantanamo Bay, Abdul Rahim Muslim Dost says that poetry kept him from losing his sanity. By the time of his release this spring, he had written more than 25,000 lines in his Cuban prison cell. During the first year of his imprisonment, the 44-year-old Afghan prisoner didn't even have paper or a pen. Instead, he scratched lines of verse with his fingernail into Styrofoam cups. One poem reads: "Just as the heart beats in the darkness of the body, so I, despite this cage, continue to beat with life. Those who have no...