re: Securing Schools - How I would start with most schools.

1. I’m certain this would cost far more than you think, at least assuming you want the measures you described to actually work.

2. Do kids not get recess anymore under your plan?

3. Many schools have multiple buildings that often require students to move between them. E.g. a separate cafeteria, gym, etc.

4. Perhaps most importantly - if some psychopath wants to go on a killing spree, he will find a way around these measures. Do they make it more difficult? Sure. But not enough to reasonably hinder someone who is planning this kind of thing. Turning entire schools into safe rooms isn’t the answer. There are just too many things to account for, and it only takes one innocent get getting shot for the entire premise to fail. We need to deal with the psychopaths.

The one thing I would agree with is putting fences around school properties and keeping doors to the outside of the fence line locked. Someone can still cut through a chain link fence fairly easily but at least that’s going to draw a ton of suspicion in broad daylight.