I seen HSS out there. CAISS (maybe contracted by HSS) does the security for DIA mostly perimeter and door alarms..TSA are the security screeners i had there freqs at one time but got alittle boring i took them out..CAISS can be interesting at times..MrSpeakEZJr said:Last I knew HSS (Hospital Shared Services) did security out there. They use a TG on the DIA system. I believe TSA uses a different one. Anyone?