In the case of Yates et al. v. United States (1956), fourteen members of the Communist Party in California were convicted under the Smith Act for conspiring to advocate overthrowing the U.S government by force and violence, as well as organizing a group that advocated such doctrine. The Supreme Court ruled 6-1 in favor of Yates and her co-defendants, overturning their convictions on grounds that they had been advocating abstract doctrine rather than concrete action towards violent revolution. The court distinguished between advocacy of forcible overthrow "as an abstract principle" and advocacy "to action", with only latter being punishable under law. This decision significantly narrowed interpretation of Smith Act, limiting its scope to instances where there is clear intent or preparation for violent actions against government.

In the dissenting opinion for Yates et al. v. United States, Justice Felix Frankfurter argued that the majority's interpretation of the Smith Act was too narrow and failed to consider its broader implications on national security. He contended that advocating for violent overthrow of government should be considered a punishable offense under this act, regardless if it is immediate or in an indefinite future. The justice believed that such advocacy poses a significant threat to public safety and order, even if it does not lead directly to action. Furthermore, he criticized the majority's reliance on free speech protections as overly broad and potentially harmful by allowing dangerous ideologies to spread unchecked under law protection.