You wrote,
Carrying those ARs will make them very visible and obvious first targets. You take out the guard first then the whole place is easy shooting.
Not true, entry point to a school should be through and armed guard and metal detector.
Most entrances are through a narrow area giving the guard a chance to see it’s a bad guy.
If one or two+ people are intent, they could shoot their way right through an entry point like that. They’d have the element of surprise. Game over.
Why do you want to spend so much of my money when there is a much cheaper and more effective method? You want to make our day prison for kids really look like a day prison. Why not surround the schools with 10 foot barbed wire topped fences and put watchtowers on the corners? I see no problem with that since expense is obviously no object. Concealed carry. The would perp does not know who is armed, does not know whom to shoot first. These guys do not want to take the chance that they will die before making their “statement.” CC is all that is needed. It costs way the hell less than armed guards and metal detectors and all the crap that accompanies that. But of course, being a Freeper, I suppose that an elaborate and totally government involved solution is the only sort of thing permissible.