I haven’t been around a modern classroom recently, but I remember in my own elementary school all of the windows were made of that kind of glass that has little wires criss-crossing making diamond shapes.
I always wondered what was the point of that wire mesh.
If someone smashes in the window, then they have to deal with the thin chicken wire as well. But that would only slow them down. Couldn’t they just clip the wires? A stout hunting or diver’s knife would probably make short work of the wires.
Sure, it might hold the glass together (and save a kid, perhaps), but why not just use the same plastic sandwich that is used for automobile windshields? It would be transparent and probably even safer.
So what’s it all about?