After watching Threads last night, I have to wonder, was using doors and bags of dirt really going to make an effective nuclear shelter? Or was it something the government issued to placate the population? A sort of something's better than nothing.
@UKFilmNerd protect and survive was a placation exercise, as when the wind blows showed. Any mass will slow down radiation but yeah couple of sand bags isn't going to cut it anywhere near a nuclear explosion..
"A millisecond of brilliant light and we're vaporized. Much more fortunate than millions who wander sightless through the smoldering aftermath. We'll be spared the horror of survival."