Tech. Sgt. Eric Godinez, left, 82nd Security Forces Squadron response team member, and Senior Airman Janine Casey, 82nd SFS response team member, search a hallway during an active-shooter exercise at the elementary school on Sheppard Air Force Base, Texas, April 20, 2018. One of the advantages on base is the response time for Security Force personnel to get to any area affected. A single patrol team could get to the school in one of these situations in less than 1 minute. The time for rest of back-up to respond would take about 3 to 5 minutes. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)