ELLSWORTH AFB, SD--Members of the 28th Bomb Wing perform a Foreign Object Damage walk on the Ellsworth Air Force Base flightline, Oct 19. FOD detection saves the Air Force millions of dollars each year in extra parts and unscheduled maintenance and FOD prevention is in the forefront of all flightline activities at Ellsworth. (U.S. Air Force photo/Master Sgt. Loren J. Bonser)