Langley first sergeants encourage John Masser, Fort Eustis Felker Army Airfield manager, during the Push-up-A-Thon/Sit-up-A-Thon at Langley Air Force Base, Va., March 11, 2011. As an individual competitor, Mr. Masser completed 324 push-ups in 10 minutes. (U.S. Air Force photo by Airman 1st Class Racheal Watson)