Think back to the days of Joe McCarthy and the Un-American Activities Committee. 
As one of "The Hollywood Ten", Dalton Trumble went to jail because of what he wrote and spoke.(and because he was a Communist).
 Dalton Trumble's defense at the time was Freedom of Speech. After being released from prison, he was "blacklisted" in Hollywood for his political beliefs (member of the Communist Party) for years and years. His book, "Johnny Got His Gun"  was considered to be "anti-war" and his belief that the United States should remain out of WWII,(isolationist) was not a welcomed voice on the eve of WWII. 
Trumble's and others who were jailed and/or blacklisted were denied their right to Free Speech. Interesting and a touch ironic considering his craft was writing, and it was Hollywood who blacklisted him. Think how he would fair in our current era of "Russians did it". 
As little Henny Penny said, the sky is falling.........the sky is falling....Trump has yet succeeded to make the sky fall.