U.S. Air Force Staff Sgt. Sean Cartwright, 83rd Network Operations Squadron network operations technician, and his son, Nathan, ask questions about a NASCAR competition vehicle April 24, 2013, at Langley Air Force Base, Va. The number 52 car visited Joint Base Langley-Eustis to support Service member morale. (U.S. Air Force photo by Airman 1st Class Austin Harvill/Released)