Airman 1st Class Heidi Curfman, 341st Security Forces Squadron defender, checks an ID at the front gate July 31, 2015, at Malmstrom Air Force Base, Mont. Curfman conducts a 100 percent vehicle occupancy ID check at the gate before allowing entry onto the base. (U.S. Air Force photo/Airman 1st Class Magen M. Reeves)