Security
Spent casings fly as Airman 1st Class Christine Houska, 114th Security Forces Squadron, provides cover fire while Tech Sgt. Lon Hatcher, 114th Security Forces Squadron, clears a jam during a shoot and move exercise in Sioux Falls, S.D., June 22, 2014. Airmen with the squadron participate in regular training to develop and hone their tactical skills. (National Guard photo by Tech. Sgt. Christopher Stewart/Released)