The late Col. Jim Thompson, America’s longest-held prisoner of war, was a captive for nearly nine years during the Vietnam War. Thompson broke his back when his plane crashed in South Vietnam on March 26, 1964. For most of the next decade, he was imprisoned in a 2-by-5-foot cage too small for him to sit or lie down. He was beaten, choked, and hanged by his thumbs. He kept himself alive by ...