U.S. Air Force Airmen simulate providing care to Senior Airman Zachary Reischman, 633rd Force Support Squadron knowledge operations journeyman, after he simulates a heart attack during a major accident exercise at Langley Air Force Base, Va., July 16, 2013. The goal of the Major Accident Response Exercise was to distribute 400 medications per hour to the people on base, demonstrating emergency capabilities. (U.S. Air Force photo by Airman 1st Class Victoria H. Taylor/Released)