Staff Sgt. Francis Maher, 28th Bomb Wing ground safety technician, reviews playground safety guidelines to verify safety standards during an inspection on Ellsworth Air Force Base, S.D., April 26, 2012. The guidelines outline standards for playgrounds and parks to ensure they are suitable and safe for the children on base. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)