![](https://d2eehagpk5cl65.cloudfront.net/img/c800x450-w800-q60/uploads/2022/05/slippery-800x450.jpg)
From Justice Frankfurter's concurrence in Dennis v. U.S. (1951):
It is true that there is no divining rod by which we may locate "advocacy" [which Justice Frankfurter thought could be punished in this case, involving a ban on conspiring to advocate violent overthrow of the government]. Exposition of ideas readily merges into advocacy…. Even though advocacy of overthrow deserves little protection, we should hesitate to prohibit it if we thereby inhibit the interchange of rational ideas so essential to representative government and free society.
But there is underlying validity in the distinction between advocacy and the interchange of ideas, and we do not discard a useful tool because it may be misused. That such a distinction could be used unreasonably by those in power against hostile or unorthodox views does not negate the fact that it may be used reasonably against an organization wielding the power of the centrally controlled international Communist movement. The object of the conspiracy before us is so clear that the chance of error in saying that the defendants conspired to advocate rather than to express ideas is slight….
And the contrary view from Justice Black's dissent in Barenblatt v. U.S. (1959):
The fact is that once we allow any group which has some political aims or ideas to be driven from the ballot and from the battle for men's minds because some of its members are bad and some of its tenets are illegal, no group is safe.
Today we deal with Communists or suspected Communists. In 1920, instead, the New York Assembly suspended duly elected legislators on the ground that, being Socialists, they were disloyal to the country's principles. In the 1830's the Masons were hunted as outlaws and subversives, and abolitionists were considered revolutionaries of the most dangerous kind in both North and South. Earlier still, at the time of the universally unlamented alien and sedition laws, Thomas Jefferson's party was attacked and its members were derisively called "Jacobins." …
History should teach us then, that in times of high emotional excitement minority parties and groups which advocate extremely unpopular social or governmental innovations will always be typed as criminal gangs and attempts will always be made to drive them out. It was knowledge of this fact, and of its great dangers, that caused the Founders of our land to enact the First Amendment as a guarantee that neither Congress nor the people would do anything to hinder or destroy the capacity of individuals and groups to seek converts and votes for any cause, however radical or unpalatable their principles might seem under the accepted notions of the time….
It is, sadly, no answer to say that this Court will not allow the trend to overwhelm us; that today's holding will be strictly confined to "Communists," as the Court's language implies. This decision can no more be contained than could the holding in American Communications Assn. v. Douds (1950). In that case the Court sustained as an exercise of the commerce power an Act which required labor union officials to take an oath that they were not members of the Communist Party.
The Court rejected the idea that the Douds holding meant that the Party and all its members could be attainted because of their Communist beliefs. It went to great lengths to explain that the Act held valid "touches only a relative handful of persons, leaving the great majority of persons of the identified affiliations and beliefs completely free from restraint." "[W]hile this Court sits," the Court proclaimed, no wholesale proscription of Communists or their Party can occur. I dissented and said:
Under such circumstances, restrictions imposed on proscribed groups are seldom static, even though the rate of expansion may not move in geometric progression from discrimination to arm-band to ghetto and worse. Thus I cannot regard the Court's holding as one which merely bars Communists from holding union office and nothing more. For its reasoning would apply just as forcibly to statutes barring Communists and their respective sympathizers from election to political office, mere membership in unions, and in fact from getting or holding any job whereby they could earn a living.
My prediction was all too accurate. Today, Communists or suspected Communists have been denied an opportunity to work as government employees, lawyers, doctors, teachers, pharmacists, veterinarians, subway conductors, industrial workers and in just about any other job. In today's holding they are singled out and, as a class, are subjected to inquisitions which the Court suggests would be unconstitutional but for the fact of "Communism." Nevertheless, this Court still sits!
The post Slippery Slope Arguments in History: The 1950s and Restrictions on Communist Speech appeared first on Reason.com.