What's worse, to me, is the current insistence by many "school administrators" to change it to "Hide, Run." My daughter is a HS teacher. During their last "active shooter" drill, she was on lunch duty - with five other teachers, and about 120 students. The cafeteria has MULTIPLE exterior doors, as well as several interior doors from the rest of the school, and two doors from the kitchen (which has two doors leading to the rest of the school). During the drill, she was directed to herd all of those children into an adjacent "study hall" room, and hold them all there. The study hall has an entrance from the cafeteria and one from an interior hallway - no external exit. In other words, it's a killing field.
But, rather than have the students - all teenagers and mature enough to not wander off and get lost - LEAVE THE SIGHT OF THE SHOOTING, they're being herded into a densely crowded room with nothing between them and a possible shooter but wooden interior doors. How does that make any sense?
I actually got into a very heated discussion about this with the administrators at my kids' middle school when, during a drill, they did what I taught them - went out the nearest window and ran to hide in the adjacent woods - instead of hiding under their desks as the administration wanted them to do. It's like the administrators learned NOTHING from Columbine. Or any subsequent school shooting. "Hiding" is a prelude to dying, at best it's a hopeful approach that the threat won't come near where you have our kids hiding.
None of this even STARTS to touch the obvious, blatant truth that the only way to stop aggressive violent behavior is with aggressive violence that overwhelms the attacker. But, let's not even start to unpack that little gem...