ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Melanie Allen, 28th Security Forces Squadron team member, participates in an armed threat training scenario, Jan. 25. Airman Allen and other 28 SFS team members received specific training from the Pennington County Sheriff Department's special response team to neutralize a threat as quickly as possible. (U.S. Air Force photo/Airman 1st Class Matthew Flynn)