The Internal Security Act, popularly named for Nevada's
Senator Pat McCarran, an aging hack who, in fact, commandeered the legislation from an earlier version by congressmen Karl Mundt and (of all people) Richard Nixon argued for the fingerprinting and registration of all "subversives" at large in the United States.
Link
Interesting wording "an aging hack"?.. supposedly a scholarly review? An attempt to discredit the man rather than his words?