I went to school in the 70's and _we_ had no such drills, but being in tornado alley, plenty of those. That said, I suspect these drills were more for theatre,

I went to school in the 70's and _we_ had no such drills, but being in tornado alley, plenty of those. That said, I suspect these drills were more for theatre, like most of the TSA is now - put up a big visible show that you're doing _something_. Reasonable people can disagree.