I lived through the entire Cold War although I was a little kid when it started. Russia, N. Korea and Iran BS about 'annihilating' us but back then the Soviets were ready, willing and able to actually do it. Everybody understood that even if they did, we would have launched before their missiles hit us and basically the world as we knew it would end. Everybody born after 1990 has been basically free of that fear. That's why it is so important to control the proliferation of nuclear weapons. They were dark days. When I first heard that JFK had been killed, my first thought was the next event would be the nuclear attack following the assassination. I think the world went a little nuts under the fear of being wiped out in seconds, and the residual effects of it are still resonating.