For those who miss the good old days of the relatively benign and
civilized Cold War, here ya go:

http://www.slate.com/id/2173108/pagenum/all/%23page_start

To quote:

But according to a new book called Doomsday Men and several papers on the subject by U.S. analysts, it may not have been merely a fantasy. According to these accounts, the Soviets built and activated a variation of a doomsday machine in the mid-'80s. And there is no evidence Putin's Russia has deactivated the system.

Instead, something was reactivated in Russia last week. I'm referring to the ominous announcement—given insufficient attention by most U.S. media (the Economist made it the opening of a lead editorial on Putin's Russia)—by Vladimir Putin that Russia has resumed regular "strategic flights" of nuclear bombers. (They may or may not be carrying nuclear bombs, but you can practically hear Putin's smirking tone as he says, "Our [nuclear bomber] pilots have been grounded for too long. They are happy to start a new life.")