Russian nuclear brinkmanship logic: If you knew we could do it, then you wouldn't cause it to happen. But you don't know we can because if you knew it then you

Russian nuclear brinkmanship logic: If you knew we could do it, then you wouldn't cause it to happen. But you don't know we can because if you knew it then you could stop us from doing it. But we know we can, so we won't cause you to cause us to do it, because that would be bad.