Earl Warren,
Pennsylvania v. Nelson — Opinion of the Court
“ Congress has devised an all-embracing program for resistance to the various forms of totalitarian aggression. Our external defenses have been strengthened, and a plan to protect against internal subversion has been made by it. It has appropriated vast sums, not only for our own protection, but also to strengthen freedom throughout the world. It has charged the Federal Bureau of Investigation and the Central Intelligence Agency with responsibility for intelligence concerning Communist seditious activities against our Government, and has denominated such activities as part of a world conspiracy. ”
