HUAC was actually started to get rid of the fascists in America (by the sole Jewish congressman of the times), but it was hijacked by good ole boy Democrats and the Republicans to become an anti-Semitic labor busting outfit which was ironically fueled by neo-Nazi vigilantes.
(read an Empire of the Their Own by Neal Gabler)
At the very end, it mentions that it's not public material. The War Dept. was unwilling to use that powerful of anti-racism weapon on the public. Not with the Commies gearing up for war.
Did anyone else get the feeling they were watching a video from some bizzaro America from another universe? Where the hell did that America go because I'd like to live in it.