Hawai'i National Guard tests homeland defense readiness
An Airman from the Hawaii Air National Guard's 154th Medical Group stationed at Joint Base Pearl Harbor-Hickam, Hawaii, helps the "victim" of a dirty bomb explosion during a week-long Homeland Defense Response validation exercise Dec. 16, 2010, at Bellows Air Force Station, Hawaii. (U.S. Air Force photo/Staff Sgt. Carolyn Viss)