Robert (M*A*S*H) Altman has died at 81

M*A*S*H was a very funny movie. Still one of my favorites. M*A*S*H the TV show was also very funny until they gave the reins over to Alan Alda and he made it too preachy.

Please, someone correct me if I'm wrong, but wasn't Altman blacklisted for being a communist sympathizer during McCarthy hearings in the late 50's and early 60's?