There is precedence for this, too. Still is, although we currently don't use the same terminology as we did during the cold war. You could argue that terrorists who strap themselves into bomb jackets also demonstrate this, and I've heard the acceptance of "collateral damage" thrown around as yet another aspect of it.

https://en.wikipedia.org/wiki/Mutual_assured_destruction

https://en.wikipedia.org/wiki/Collateral_damage