[Yosemitest]

" by jokingly revising the message as
“if this had been a real emergency, y’all would’ve been blown to bits by now.”
Some people just have no sense of humor. "

I love it. That's great.

I can remember, as a kid, my dad taking me, my brother and my mom out to look at the night sky during the Cuban Missile Crises
and expecting Russia to launch nuclear missiles at any time, or for us to launch them first.
But I don't remember anytime before that the TV was interrupted for 4 minutes for a test.

[Springfield Reformer]

My dad was an early adopter of tv and I do recall as a small child seeing what I interpreted as an emergency test pattern on our tv. Being a small child, I could be remembering it incorrectly or with imaginative embellishments, I suppose. But my dad was a ham radio operator and part of the local civil defense volunteer group, and I can tell you confidently this sort of thing was viewed in a very positive light by the people of that time. The fact that someone may abuse it is an inherent risk of having such a system, but that is a political problem, not a technical or constitutional problem. IMHO.