A mushroom cloud bursts into the air after the detonation of obsolete munitions by the Marines of Ammunition Company, 2nd Supply Battalion, 2nd Marine Logistics Group at a demolition range aboard Camp Lejeune, N.C., Dec. 4, 2012. The company detonated 17 separate caches of ordnance and destroyed damaged small-arms munitions in a burn pit filled with tinder and 35 gallons of diesel gasoline.