He was concerned about a copycat attack on the day of the Connecticut shootings. But, as he read reports of the massacre, he started to worry more about something else. For 20 years, he had specialized in school safety, filling three binders with security plans and lock down drills - all of which felt suddenly inadequate.

http://dancingczars.wordpress.com/2013/01/11/is-all-of-this-a-serious-over-reaction/#more-73164