There's another key difference: normal buildings lose all of their windows in a large explosion. Alex Wellerstein's calculator says that "glass windows can be e

There's another key difference: normal buildings lose all of their windows in a large explosion. Alex Wellerstein's calculator says that "glass windows can be expected to break" at 1 psi (7 kPa) overpressure, i.e., out to 13.9 km distance (!) from the smallest-size modern MIRV warhead (350 kilotons). https://nuclearsecrecy.com/nukemap/ https://nuclearsecrecy.com/nukemap/ (Do you happen to have a link to that specific Cold War guidance?)