It's just an absurd joke and they don't even believe there can be a nuclear attack ("there's no panic" is a running joke about the Russian mantra, but really there's no panic about that).

It's just an absurd joke and they don't even think there can be a nuclear attack ("there's no panic" is a running joke about the Russian mantra, but really there's no panic about that).

It's just an absurd joke and they don't even think there can be a nuclear attack ("there's no panic" is a running joke about the Russian mantra, but really there's no panic).

It's just a joke, like millions of Americans signing up for similarly absurd "let's Naruto run into Area 51, they can't kill us all".