Airmen spray U.S. Air Force Chief Master Sgt. Kevin Howell, 633rd Air Base Wing command chief, with champagne and fire extinguishers upon completion of his last flight as an Airman, June 5, 2012, at Langley Air Force Base, Va. Howell, who began his career in 1983 as an Aerospace Control and Warning Systems operator, will retire from the Air Force June 15. (U.S. Air Force photo by Tech. Sgt. Barry Loo/Released)