U.S. Air Force Airmen secure Senior Airman Zachary Reischman, 633rd Force Support Squadron knowledge operations journeyman, to a stretcher after he simulated a heart attack during a Major Accident Response Exercise at Langley Air Force Base, Va., July 16, 2013. Exercises like the MARE test the responders’ ability in high-stress situations in the event of a real-world emergency. (U.S. Air Force photo by Airman 1st Class Victoria H. Taylor/Released)