If you are going to penalize disloyalty, you must first determine what loyalty is; if you are going to silence nonconformity, you must determine what… - Henry Steele Commager

The most effective censorship is not, in fact, legal; in a democracy—as Tocqueville pointed out in Democracy in America—it is public opinion.

With the Sedition and Espionage Acts … the "red hysteria" of the Twenties, the Alien Registration Act of 1940, the loyalty tests and purges of the mid-Forties, the establishment of un-American Activities Committees, intolerance received, as it were, the stamp of official approval. Loyalty was identified with conformity, and the American genius, which had been experimental and even rebellious, was required to conform to a pattern.

If government, or those in positions of power and authority, can silence criticism by the argument that such criticism might be misunderstood somewhere, there is an end to all criticism, and perhaps an end to our kind of political system. For men in authority will always think that criticism of their policies is dangerous. They will always equate their policies with patriotism, and find criticism subversive.