U.S. Air Force Chief Master Sgt. Richard Parsons, command chief of Air Combat Command at Langley Air Force Base, Va., answers a 552nd Air Control Wing Airman’s question during his Dec. 10 All Call at Tinker AFB. The command chief visited the wing Dec. 9-11, greeting and thanking Airmen as he went through the squadrons of the large wing here. (U.S. Air Force photo by Margo Wright/Released)