Run Hide Fight is the new paradigm.
Run - Your first option. Get away if you can.
Hide - If you can’t run, hide. Barricade the door. Try not to attact attention.
Fight - If you can’t run and you can’t hide, fight as well as you can with whatever you have available. If you fight, you have a fighting chance. If you are passive, you do not. Experience shows that being passive will not save you.
The response time was much better than at Columbine.
Run, Hide, Fight .... and elect a president who will stop importing Jihad.
Check, Check, Check, and Check.