Yep. One of my pet projects is trying to document the links between ANSWER and the older groups. Working on an article along those lines which I'll hopefully post sometime soon.
But there are other ways that the cold war was a lot hotter than advertised. Real warshots, and stuff like that there.
I've heard a little about those from friends who were stationed where some of those happened. One book I have here mentions,
In 1977 Faith Campbell Johnson attempted to document the instances of Soviet flourishes between 1945 and 1973. . .Between 1945 and 1947 there were more than forty cases in which American or Allied (usually British) aircraft were shot down within Soviet territory or along its borders. . .[Between 1945 and 1949] there were nineteen Soviet flourishes. . .Between [1949 and 1957], Russia rattled her sabers a further twenty-nine times. . .
The various incidents are listed--mostly in Eastern Europe or the Far East. A few that intrigue me because of the relevance to the current situation are the near-confrontations over Quemoy and Matsu in the 1950s; the Cuban Missile Crisis of course; and the crisis between Pakistan and India in 1971, where they're still debating exactly what happened.