They seem quite useless: https://uk.reuters.com/article/uk-new-york-nuclear/new-york-removes-misleading-nuclear-fallout-shelter-signs-idUKKBN1EL0SZ https://uk.r

They seem quite useless: https://uk.reuters.com/article/uk-new-york-nuclear/new-york-removes-misleading-nuclear-fallout-shelter-signs-idUKKBN1EL0SZ https://uk.reuters.com/article/uk-new-york-nuclear/new-york-...