I think it is successful in terms of prevention, I have to agree on cost though.

More kids have died of the flu this year than mass shootings, effort would be better spent engineering better flu defenses as opposed to any sort of 2nd amendment suppression or armed security.

Simple solution for schools - better doors/locks, pay for qualified staff to get CCC/CCL with ongoing refresher training + a small raise for having one.

Of course then, the crazies would just switch to mowing over kids waiting at a bus stop with a pickup truck or something. Just like better airline "security" leads people to start blowing up bombs in crowded airports instead of on planes. /shrug


For who could be free when every other man's humour might domineer over him? - John Locke (2nd Treatise, sect 57)