I recently watched a movie by Woody Allen (The Front) on the same topic. And I was feeling uneasy about it. But despite its being part of our weekly intellectual excersices, I did not feel like thinking much about it. Lileks did, although in his case it was a play, not a movie.
Re: And your point being...
Not true. They were refusing the testimony not because they had some respect for law - but because they were afraid to be imprisoned for perjury. If you read the protyocols, you'd see that the questions were very precise, showing that those who asked them knew a great deal about those they questioned.
Also, you argue that communists who planned violent overthrow of the Government and spied on behalf of Stalin, - they were ok with murder and treason, but they had great respect for the law - so great, that they could not lie about their spying and planning murder... I guess, your ties with reality are as strong as they look.