MARE Active shooter exercise
Three members of the Kent County, Delaware, Department of Public Safety, Division of Emergency Medical Services, listen intently during a briefing in a hallway as they respond to a Major Accident Response Exercise with active shooter scenario on Aug. 1, 2014, at Dover Air Force Base, Del. From right to left are: Rich Allen, Scott McMillon, both tactical medics, and Capt. John Tinger, SWAT Medical Team commander. (U.S. Air Force photo/Greg L. Davis)