U.S. Air Force Senior Airman Dalton Short, right, 60th Security Forces Squadron installation patrolman, assists a simulated causality victim Airman 1st Class Pheanyx Williams, 60th Operations Support Squadron air traffic controller, during a base exercise Sept. 24, 2020, at Travis Air Force Base, California. The exercise was designed to evaluate the training, readiness and capability of Travis first responders in order to effectively respond to active shooter threats to the installation. (U.S. Air Force photo by Heide Couch)