There have been numerous news reports on the heroics of teachers and other school staff during the Newtown shooting.
I think this tweet from Jason Flom makes one important point about its impact:
Stories of teacher heroics in #Newtown should put to rest suggestions/accusations of teachers not putting students first. #edreform #edchat
— Jason Flom(@JasonFlom) December 16, 2012
http://kylenebeers.com/blog/2012/12/15/on-monday/ says it all for me