An Air Force Academy cadet struggles to maintain the "up" position during a Monster Mash at Hurlburt Field, Fla., June 13. The Monster Mash was a six-mile obstacle course designed to test the physical and mental abilities of would-be special tactics officers. The cadets were volunteers taking part in the Special Tactics Officer Orientation Course held here June 2-19. (U.S. Air Force photo/Master Sgt. Buffy Galbraith)