I think Wayne LaPierre idea is almost correct. it would just costs too much money.
Before many parts of the country had concealed carry laws, someone who wanted or needed to carry
a concealed weapon, would join the police auxiliary.
The positions were largely unpaid, required police training, but the person was a licensed police officer.
I suggest that any person who aspires to be a school administrator, must also be an auxiliary police officer.
Just like they need certification in education administration and a Degree.
All of the the gun free zones exclude licensed police officers.
Teachers could also volunteer, or maybe even receive a small stipend for being an licensed officer,(like being a coach).
Having even 2 of 3 armed auxiliary police on each campus, should harden the schools enough to send the nutcases to softer targets.
Ain't gonna happen though. Cause in the liberal world, a useless union job in school admin is more important than the children. It was never "for the children" with the liberals. What an f'ing joke.
Treat the earth well: it was not given to you by your parents, it was loaned to you by your children. We do not inherit the Earth from our Ancestors, we borrow it from our Children. ~ Ancient American Indian Proverb