I have a friend who is director of security for a large NH hospital and they are running a joint Active Shooter exercise today with the local PD/FD/EMS/ETC. I asked if they had considered adding an armed civilian component and he said he wishes I asked him earlier. I think part of responding to an active shooter/killer during training should integrate the possibility of encountering an armed civilian "good guy". Has anyone participated in an exercise that included that in the preparation or exercise, or even been briefed on the possibility? I also think civilian training programs should address what to do when caught in an active shooter event and confronted with encountering responding LE. There is one training video out that strongly advocates only drawing to engage, and IMMEDIATELY re-holstering. I think concealing the firearm is paramount before attempting to get the attention of responding officers.