You will run across people here who really claim to think that Al Quaeda is more dangerous than the old USSR. As if a theoretical nuke is more dangerous than 10,000 real ones.
Al Quaeda will use its nuke when, not if, it gets one. But it cannot destroy the US, and the USSR dang sure could have!
Good point. But I think a case could be made that Al Queda (if they manage to mount more attacks inside the U.S., or cause one really big disaster) is more dangerous to our form of government and way of life than the USSR was. Fear of being hit at home has a way of changing things that facing an outside enemy wouldn't.