One of my RSS feed I read every day at work over coffee is the How-To Wiki.
A few days ago I saw an interesting article:
How to Survive a School or Workplace Shooting
"What would you do if a shooting happened in your own school or workplace? It is a scary thought, but it is something that could happen to anybody. Having some ideas about how to respond beforehand could save your life."
--Be careful out there. The Postman always rings twice.