U.S. Coast Guard Rear Adm. June E. Ryan, background, the military adviser to the secretary of the Department of Homeland Security, walks and talks with Army Maj. Gen. R. Martin Umbarger, the adjutant general of the Indiana Army National Guard, Aug. 3, 2013, during Vibrant Response 13-2 at the Muscatatuck Urban Training Center in Indiana. Vibrant Response is a U.S. Northern Command-sponsored field training exercise for chemical, biological, radiological, nuclear and high-yield explosive consequence management forces designed to improve their ability to respond to catastrophic incidents.