and do you add an armed guard to keep an eye on the armed guard to make sure they aren't unstable? besides, a single guard can't protect anything more than a 1 room schoolhouse - if that.
when there is a shooting at a school, does only one policeman show up?
Fact: Lawful guns are still far too easy to come by and guns with no practical use other than killing people are still available.
Fact: There needs to be serious background checks and waiting periods on all gun sales.
I think the gun sales went up because of a gun crazy society and people are terrified. Fewer guns are the answer.