U.S. Air Force Security Forces personnel walk out to their posts at the Louis Armstrong New Orleans International Airport, in New Orleans, La., on Sept. 10, 2005. Members of the 822nd Security Forces Squadron from Moody Air Force Base, Ga., are deployed to provide security duties for the 4th Air Expeditionary Group. Department of Defense units are mobilized as part of Joint Task Force Katrina to support the Federal Emergency Management Agency's disaster-relief efforts in the Gulf Coast areas devastated by Hurricane Katrina.