Iceman in Action: Senior Airman Sean Kirby
U.S. Air Force Senior Airman Sean Kirby, a 354th Civil Engineer Squadron emergency management journeyman, explains joint effects modeling to Master Sgt. Jason Blair, the 354th CES emergency management superintendent, Sep. 29, 2015, at Eielson Air Force Base, Alaska. The model on the screen shows a simulated chlorine plume and what areas could be affected. (U.S. Air Force photo by Airman 1st Class Cassandra Whitman/Released)