That’s all Nuclear Winter ever was...a Soviet propaganda tool. It doesn’t change the fact that a nuclear exchange wouldn’t be pretty, but mutant cockroaches, two headed cattle, and immortal radiation ghouls won’t be the result.
"Mr. President, I'm not saying we wouldn't get our hair mussed, but I do say no more than 10 to 20 million killed, tops! Uh, depending on the breaks."