Dennis v. United States (1951)
Eugene Dennis was a leader of the Communist Party in the United States between 1945 and 1948. He was arrested in New York for violation of Section 3 of the "Smith Act." The Act prohibited advocation of the overthrow of the United States Government by force and violence. The government felt that the speeches made by Dennis presented a threat to national security. Dennis appealed his conviction to the Supreme Court of the United States, claiming that the Smith Act violated his First Amendment right to Free Speech. At issue was whether the Smith Act violated the First Amendment provision for freedom of speech or the Fifth Amendment due process clause.
The Court found that the Smith Act did not violate Dennis' First Amendment right to free speech. Although free speech is a guaranteed right, it is not unlimited. The right to free speech may be lifted if the speech presents a clear and present danger to overthrow any government in the United States by force or violence. Since the speech made by Dennis advocated his position that the government should be overthrown, it represented a clear and present danger to the national security of the United States. (Source - PATCH - See link below)
Yates v. United States (1957)
In 1951, fourteen persons were charged with violating the Smith Act for being members of the Communist Party in California. The Smith Act made it unlawful to advocate or organize the destruction or overthrow of any government in the United States by force. Yates claimed that his party was engaged in passive actions and that any violation of the Smith Act must involve active attempts to overthrow the government.
At issue was whether Yates' First Amendment right to freedom of speech protected his advocating the forceful overthrow of the government. The Supreme Court of the United States said that for the Smith Act to be violated, people must be encouraged to do something, rather than merely to believe in something. The Court drew a distinction between a statement of an idea and the advocacy that a certain action be taken. The Court ruled that the Smith Act did not prohibit "advocacy of forcible overthrow of the government as an abstract doctrine." The convictions of the indicted members were reversed. (Source - PATCH - See link below)
http://www.socialstudieshelp.com/CourtCases.htmWe see using these two cases as context that RCTV did actually advocate some concrete action rather than merely advocating the abstract idea of overthrowing the government.