One would think an emergency broadcast makes sense for everyone. What I noticed today was that my shortwave weather radio has a weekly test so you know you’re getting broadcasts. Then I noticed that I receive emergency alerts via twitter & email; neither of which have test messages. Presumably because we are all so afraid of “spam”? Never mind that in the modern age, you can use filters to put the test messages in a folder you don’t see unless you want to confirm your getting emergency messages.
I think I’m on to something profound here but not exactly sure what it is… Hopefully twitter and email work in the Zombie Apocalypse.