Chief Master Sgt. Richard Parsons, Air Combat Command command chief, greets Defenders from the 28th Security Forces Squadron outside the 28th SFS shoot house at Ellsworth Air Force Base, S.D. Jan. 29, 2014. During his visit to the shoot house, Parsons learned more about how Defenders utilize the training facility to prepare, rapidly respond and deploy to an active shooter scenario. (U.S. Air Force photo by Airman 1st Class, Rebecca Imwalle/Released)