The Soviets were at least willing to play ball with us. They knew that if they let up on their threats, we'd let up on ours. They knew that if they attacked us, we'd take them down as well. The Soviets were different because they thought it best to practice self-preservation. But those psychos running Iran and North Korea don't seem to realize (or care) that attacking the States or Israel would be the suicide of them and their entire countries. That's what makes them more dangerous.