U.S. Air Force Staff Sgt. Jeremy Rogers, an aerial spray aircraft maintainer from the 910th Aircraft Maintenance Squadron, inspects the sprayer on a C-130 Hercules cargo aircraft on the runway of Stennis International Airport, Miss., on May 10, 2010. The 910th Airlift Wing, the Department of Defense’s only large-area fixed-wing aerial spray unit, is in Mississippi to assist with the Deepwater Horizon oil spill.