VANDENBERG AIR FORCE BASE, Calif. -- Tech. Sgt. Robert Brown, 30th Engineer Squadron explosive ordnance technician, explains how fast a 10 ft. piece of detonation chord will burn once it has been ignited during an explosive ordnance awareness course with members with the Transportation Security Administration from various airports in the Santa Barbara County area Feb 27 here.(U.S. Air Force photo/Senior Airman Matthew Plew)