[Donald J Trump]

Arming teachers is a responsible choice, that or getting more security and that doesn't have to be guns.

The fact is you have to add security not take it, because criminals don't follow the law...
Example: I still pirate movies even though its illegal, because I can get away with it

More armed security, Checkpoints, Metal Detectors.. There are easy ways to add more security, but banning guns will do absolutely nothing from stopping a person who wants to kill a bunch of people.