I have waited a while before saying anything about the Un-American Activities Committee's current investigation of the Hollywood film industry. I would not be very much surprised if some writers or actors or stagehands, or what not, were found to have Communist leanings, but I was surprised to find that, at the start of the inquiry, some of the big producers were so chicken-hearted about speaking up for the freedom of their industry.
One thing is sure — none of the arts flourishes on censorship and repression. And by this time it should be evident that the American public is capable of doing its own censoring. Certainly, the Thomas Committee is growing more ludicrous daily.

My Day (1935–1962) (29 October 1947)