Byron White, United States v. Brown (381 U.S. 437…
“ But how does one prove that a person would be disloyal? The Communist Party's illegal purpose and its domination by a foreign power have already been adjudicated, both administratively and judicially. If this does not in itself provide a sufficient probability with respect to the individual who persists in remaining a member of the Party, or if a probability is in any event insufficient, what evidence with regard to the individual will be sufficient to disqualify him? ”
