LANGLEY AIR FORCE BASE, Va. -- Senior Airman Ryan Gross, 633d Civil Engineer Squadron Fire Department firefighter, checks Airman Jessica Howe, 633d Medical Group Dental Squadron technician, for consciousness before carrying her away for treatment of an mock injury at the scene of a simulated explosion during a Major Accident Response Exercise Feb. 4. Volunteer Airmen suffered from mock injuries including impalement, burns and dizziness. (U.S. Air Force photo / Senior Airman Wesley Farnsworth) (RELEASED)