During the Cold War, U.S. fighter interceptors would scramble and climb to meet              up with Soviet Bear Bombers as they tested air defenses around Alaska and Hawaii.           As an unofficial signal of greetings to the American pilots the Russians would hold up to their cockpit windows the famous Marilyn Monroe calendar, which seemed to be standard issue on Bear Bombers. American pilots as a reply would then close in and hold up            the latest new centerfold from Playboy magazine, something the Russians didn't have.