re: Who ducked and covered?

Albuquerque.

Had much more "stuff" on display than I expected.

I figured it was going to be mostly documents on display under glass and placards. Instead there were actual launch vehicles, weapons systems, aircraft, some of the original analog lab instruments from Oak Ridge, etc. It was outstanding.

Best documents were birth certificates of kids born in the infirmary at Los Alamos. Over 100 children were born in PO Box 1663, Santa Fe NM, the only place on Earth that Los Alamos actually existed.