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MEMA has a list of likely threats — nuclear detonations not on it. I asked about that: "we will have to reassess that over the next couple of years... do we change our priorities or our planning? should we invest in fallout shelters and public messaging?" (1/2)
"...it's a real challenge, we have not gone down that path." Just an interesting data point, as we sit in a building housed in a 1963 bunker that was meant to survive a nuclear attack...
