I was all set to cut loose on the Connecticut shooting

but Bobbi says it better than I could.

Bottom line, you don’t solve these things by controlling guns.  You solve them by controlling the mentally ill nutbags who decide it’s a great day to go shoot up a classroom full of kids.  And you control them by one of two methods:  Either identifying them before they go ballistic, or by going ballistic on them when you see them coming.

An armed and properly-trained teacher would have gone a long way toward saving the day.