Seems the general consensus in the comments is that this is a bad idea. I want a thread made in the ED about this to see if some of the more intelligent members will come out and throw some logic down. Hell, I'll probably make it myself.
Someone raise a valid point- all of the schools where shootings took place were gun-free zones. Psychos like Harris and Klebold or Cho will specifically target schools where they know they will face little to no opposition, because they are cowards. It's why they took their lives, rather than let themselves be caught by the police.
Hell, the only reason I don't mind my college being gun-free is because we have campus police that can get across the campus in two minutes.
EDIT: made a thread