Airman 1st Class Bryan Murphy and Staff Sgt. Pable Enriquez, 6th Security Forces Squadron emergency services team members, prepare to clear a building during EST training at MacDill Air Force Base, Fla., Feb. 13, 2014. The EST functions are similar to civilian police departments Special Weapons and Tactics Team (SWAT). (U.S. Air Force photo by Senior Airman Melissa V. Paradise)