The NRA leadership has not fully thought through their proposal to have an armed police guard at every school There is so much wrong with that proposal.
Cost: People are often unwilling to raise their taxes for any reason, much less for armed guards.
Practicality: When the children are at lunch or recess, which they do in shifts often, where is the guard – at the front door, on the playground, in the cafeteria, taking his/her break? How many guards would there need to be to adequately watch a school full of children who are never in one place from start through end of day?
All the exit doors would all have to be secured with locks that a “bad guy” wouldn’t be able to break or shoot through. That leaves the school kids vulnerable in real emergencies, with only one exit, where someone who is intent on doing harm could be hiding.
You cannot completely protect against those who are determined to shoot up a school, a movie theater, a mall, a church. The NRA has it wrong in its answer to the horrible violence to which we’ve been exposed.