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 WarrenIf Nixon is not forced to turn over tapes of his conversations with the ring of men who were conversing on their violations of the law, then liberty will soon be dead in this nation.
Earl Warren