My 5th grade teacher brought flintlocks to class to illustrate American history lessons. In high school shop, everyone made "hunting tools", a.k.a knives, and some fellows in advanced shop made swords and machetes. I'm only 32, and things have sure changed a lot since I got out of school.
Still, given the current political/social/legal climate, a 12 year old that doesn't understand that firearms aren't allowed in school probably isn't smart enough to rise any higher than, oh, say maybe a Henrico police spokesman. It doesn't sound like brains are required for that job, if that Lt. doesn't even know the difference between a bullet and a cartridge.