we are joined by retired army lieutenant tony shaver. a former intelligence officer working on security issues at military bases, joining us via skype. what was your take on the weapon used? careful not to wade into the fight over whether or not concealed weapons should be allowed on base, but he was clear that that was not a registered weapon. >> that's been a problem and was the problem had hassam, and i live in virginia, i feel safer in springfield than the neighbouring county. because springfield has police and citizens that can carry concealed weapons. the other county you can't. the issue you brought up and dodged - to be honest with you - is that you can easily sneak weapons in. once you are in, there's virtually nobody who is armed except for a handful of security guards, except for the military police officer. i'm not diminishing the role of the female military police officer who took him down, she's very much a hero. it's more likely someone like the soldier would be successful, this lopez would be successful because there's no