Perhaps it's a British thing, but fear of nuclear war was always intertwined in the culture with a deep cynicism about the clear inadequacy of the advice given to the population in the event of an attack; the 'core' in the article, viz a lean-to made out of a door with stuff piled on top, brings to mind the protagonists in 'when the wind blows' obsessively trying to remember to remain in this alleged sanctuary even as radiation poisoning destroys them.