Tech. Sgt. Shane Christian, 28th Bomb Wing Ground Safety NCO in charge, inspects climbing harnesses during a routine safety inspection at the 37th Bomb Squadron support section on Ellsworth Air Force Base, S.D., March 30, 2012. Ground safety specialists are responsible for educating base personnel on risk management, hazard elimination and proper personal protective equipment. (U.S. Air Force photo by Airman 1st Class Kate Thornton/Released)