Staff Sgt. Carl Makins Jr. initiates explosives with an electric firing device at a secure location on Charleston AFB May 22. The explosive ordnance disposal team routinely detonates explosives as part of demolition qualifaction training. Sergeant Makins is an EOD technician reservist with the 437th Civil Engineer Squadron. (U.S. Air Force photo/Airman 1st Class Katie Gieratz)

Senior Airman Johnathon Baxley joins two wires together to prevent any stray static electricity or electromagnetic radiation from setting off blasting caps before a planned detonation at a secure location on Charleston AFB May 22. Airman Baxley is an EOD equipment supervisor with the 437th Civil Engineer Squadron. (U.S. Air Force photo/Airman 1st Class Katie Gieratz)

Senior Airmen Ryan McCary and Johnathan Baxley survey the area after detonating TNT at a secure location on Charleston AFB May 22. Airman Baxley is an EOD equipment supervisor and Airman McCary is an EOD journeymen with the 437 CES. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

A sign warns members on Charleston AFB outside of a secure area on Charleston AFB where Airmen use C-4 to detonate sticks of TNT. (U.S. Air Force photo/Senior Airman Nicholas Pilch)

Senior Airman Johnathan Baxley wraps an explosive charge around a block of C-4 and stick of outdated and dangerous TNT at a secure location on Charleston AFB May 22. Airman Baxley is an EOD equipment supervisor with the 437 CES. (U.S. Air Force photo/Senior Airman Nicholas Pilch)