Wearing yellow decontamination suits, U.S. Air Force MASTER SGT. Ken Jacobson (right) is assisting TECH. SGT. Steve Winkler (left), 42nd Civil Support Team (CST), North Carolina Air National Guard, with photographing a house during a final exam of the Civil Support Skills course at Fort Leonard Wood, Mo., on Oct. 19, 2004.(U.S. Air Force PHOTO by TECH. SGT. Brian Christiansen) (RELEASED)