It's almost like, it's often the bad recording quality of things which makes them interesting.
The government would be able to go to court with respect to newspaper articles, broadcast pieces and the like that they thought were bad or harmful or even against the government and try to block them.
There was a very serious communist strain among American intellectuals before the war. America was a more tolerant place in those days, and Communists were not treated as pariahs. That ended with the McCarthy era.

