Col. Gentry Boswell, 28th Bomb Wing vice commander, addresses participants of the Prisoner Of War - Missing In Action 5k run at the Pride Hangar at Ellsworth Air Force Base, S.D., Sept. 21, 2012. As many as 150,000 Americans have been prisoners of war and more than 88,000 Americans are still listed as MIA from conflicts since World War II. (U.S. Air Force photo by Airman 1st Class Anania Tekurio/Released)