Staff Sgt. Jeremy Redfern works to remove unexploded ordnance from a building floor using a 'hook and line' kit while supervised by Master Sgt. Paul Horton at Fort Carson, Colo., Jan. 10, 2013. Redfern, an EOD technician, and Horton, an EOD flight chief are assigned to the 21st Civil Engineer Squadron. (U.S. Air Force photo/Staff Sgt. J. Aaron Breeden)