"White Powder" Exercise

Staff Sgt. David Cooper, a member of the 185th Air Refueling Wing’s Disaster Response Team, steps through the decontamination center during a “White Powder” exercise, August 10, 2012. Members of the 185th worked with the Sioux City Fire Department to test their ability to report, control, test, and remove potentially deadly chemicals. (U.S. Air National Guard Photo by Tech. Sgt. Richard Murphy/ Released)

"White Powder" Exercise

Staff Sgt. Steven Lively, a member of the 185th Air Refueling Wing’s Disaster Response Team, takes a sample from an envelope containing a suspicious substance, during a “White Powder” exercise, August 10, 2012. Members of the 185th worked with the Sioux City Fire Department to test their ability to report, control, test, and remove potentially deadly chemicals. (U.S. Air National Guard Photo by Tech. Sgt. Richard Murphy/ Released)