Just a couple of comments regarding the last ten or so threads.
1) Many of the folks brought before HUAC were or had been members of the Communist Party. Woody was--I've seen a copy of his card in a biography of some 25 years ago. Pete, I think, has admitted he was, Budd Schulberg and Elia Kazan were. The CPA was, I believe, a legal political party.

2) Few of them, if any, were hard-core, wanting to overthrow the US by force, members, and most had left the Party long before the hearings.

3) The remainder of those called because they had supported causes spearheaded by or supported by the CPA, but were not, themselves, Communists.

4) Although the House hearings had nothing to do with Tail-Gunner Joe, in fact the 1947 hearings, preceded his Senate hearings by three or four years, McCarthy has become the eponym for the entire period.

5) Contrary to popular belief (and a poorly written essay I read on the internet) the government, HUAC, did not Blacklist anyone. Blacklisting was done by the studios, TV networks and sponsors. They were egged on by pressure groups threatening boycotts, and some threats of governmental regulation...this is the same type of threat that had been the impetus for the Hayes and Breen offices to enforce the motion picture decency codes.

The actor, Robert Vaughn, wrote a doctoral dissertation at USC about the blacklist. I read a book about 40 years ago entitled 'Only Victims'...this may have be by a fellow named Navsky or by Vaughn himself; I disremember.

With the onset of the Cold War, these travesties occurred, not unlike the internment of Japanese aliens and Japanese-American citizens during WWI. The irony of HUAC was that whatever affiliations the actors, directors and writers had with CPA had, for the most, part long passed.