Senior Airman Michael Maze, 28th Civil Engineer Squadron structures technician, sizes a cylinder of a lock on the gate surrounding the soon-to-be fitness area in the Pride Hangar on Ellsworth Air Force Base, S.D., Dec. 12, 2012. Ellsworth locksmiths are responsible for installing and overseeing the installation of every lock on base. (U.S. Air Force photo by Airman 1st Class Kate Thornton-Maurer/Released)