Lt. Col. David Allen (far right), an Air Force Mortuary Affairs Operations chaplain, delivers a speech regarding the symbolism displayed on a table honoring prisoners of war and missing in action servicemembers during a Sept. 23, 2011, ceremony inside the Atrium. The glass was inverted for the thousands of MIA servicemembers who could not toast on this occasion. (U.S. Air Force photo by Augustine G. Salazar)