ELLSWORTH AIR FORCE BASE, S.D. -- Airman 1st Class James Mason, 28th Civil Engineer Squadron heating, ventilation and air-conditioning technician, puts on his helmet before going for a motorcycle ride, Aug. 3. Wearing a helmet while riding is not only mandatory on base, but it can also save the rider’s life in the event of an accident. (U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)