@NorthernInvader
Yep
I was born in 1950, so Cold War threats of nuclear war were real and present. All cities had shelters. One day my dad was approached by neighbors wanting to build a large bomb-shelter, he refused to help. Being an engineer with top security clearance. He knew the folly. He told us kids, "If you hear the sirens, go up on the roof and watch the flash. You do not want to live in world after a nuclear attack. Death will be slow and very painful."