Imagine a world where Fidel Castro was able to fire the Russian nuclear missiles based on Cuba which is only 90 miles off America's coast. Suppose 40 missiles struck America, destroying many of the country's greatest cities. New York City, Boston, Chicago, Washington D.C., Atlanta, Baltimore, Detroit, Dallas and Miami are destroyed by 2 megaton warheads. The surprise attack caught America by surprise. Imagine the world if the 1960s as we knew it didn't...