MAD was a necessary compromise when delivery accuracy and certainty were insufficient to target individual threat sites. It led to enormous megatonne weapons. Whereas modern counterforce involves small-yield warheads placed accurately.
Bonus clip: https://www.youtube.com/watch?v=ecPeSmF_ikc
Edit: https://ourworldindata.org/nuclear-weapons (which also shows that both the hexagonal "Force de dissuasion" and Airforce One's Tridents are in the noise)
> "These weapons have the capacity to kill millions directly and through their impact on agriculture have likely the potential to kill billions."
Maybe swatting RU/US wouldn't be so civic minded after all.
Or, from a perspective of posterior probability, you could not be worried at all, since nuclear war has never before happened.
I understand communications from boomers' spouses are sent by radio in the clear (from platforms such as an E-6B?), so everyone gets to appreciate the rare occasions when double entendres are slipped in past the censors.