Airman 1st Class Alex Price, 28th Civil Engineer Squadron electrical systems technician, loosen a security light case during while replacing a light bulb on a maintenance building near the flightline at Ellsworth Air Force Base, S.D., April 20, 2012. Many of the security lights necessary for night operations, were not working properly and needed to be replaced. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)