Airman 1st Class Bradley Taylor and Staff Sgt. Jason Luckenbaugh, 4th Civil Engineer Squadron explosive ordnance disposal technicians, prepare a high explosive charge on Seymour Johnson Air Force Base, N.C., Dec. 16, 2009. To prepare a charge, the Airmen tightly tape explosives together, focusing the effects of a detonation. (U.S. Air Force photo/Senior Airman Ciara Wymbs)