As mentioned, kids that age wouldn't qualify for concealed carry permits due to age restrictions. I was referring to teachers and other staff members, as well as visiting adults.
Too many people are dying because even if they had the mindset to prevent this needless destruction, they are not allowed to carry the tools necessary to do so.
"My first priority will be to reinstate the assault weapons ban PERMANENTLY as soon as I take office...I intend to work with Congress on a national no carry law, 1 gun a month purchase limits, and bans on all semi-automatic guns."-Barack Obama
"When in doubt, whip it out."-Nuge