The mere summoning of a witness and compelling him to testify against his will, about his beliefs, expressions or associations, is a measure of governmental interference. And when those forced revelations concern maters that are unorthodox, unpopular, or even hateful to the general public, the reactions in the life of the witness may be disastrous.
Earl WarrenLegislators represent people, not trees or acres. Legislators are elected by voters, not farms or cities or economic interests.
Earl Warren