In the course of my review, I also noted that the existing wings had all concrete block walls in the corridors, but the new wings were planned to have glass sidelights adjacent to each classroom door. This was just a few years after Columbine and security was (supposedly) a high priority. In fact, I was briefed that the school had an emergency lock-down procedure. So I asked what the point was of locking the classroom doors if there was a glass panel right next to the doorknob that a shooter could kick or shoot out. The architect's response? "We like them. We think they add a sense of openness to the classrooms."
The other problem with the whole lock down procedure is by the time the report comes in that there's an active shooter, he can already be in a classroom. We went through a lockdown plan at a local college I used to attend. After a shooting is reported, the office announces it to the professors and they lock the door and turn off the lights. Great. My question to the professor was, "What if he's in here? Who gets up to lock the door?".
I don't disagree with it, but it still leaves the potential to cost 30 or 40 lives.