If you live in South Carolina, and you are seeking to overthrow the government, you must register with the state.
"Subversive Activities Registration Act"
(1) "Subversive organization" means every corporation, society, association, camp, group, bund, political party, assembly, body or organization, composed of two or more persons, which directly or indirectly advocates, advises, teaches or practices the duty, necessity or propriety of controlling, conducting, seizing or overthrowing the government of the United States, of this State or of any political subdivision thereof by force or violence or other unlawful means;
Every member of a subversive organization, or an organization subject to foreign control, every foreign agent and every person who advocates, teaches, advises or practices the duty, necessity or propriety of controlling, conducting, seizing or overthrowing the government of the United States, of this State or of any political subdivision thereof by force or violence or other unlawful means, who resides, transacts any business or attempts to influence political action in this State, shall register with the Secretary of State on the forms and at the times prescribed by him.
Any organization or person who violates any of the provisions of this chapter shall, upon conviction thereof, be punished by a fine of not more than twenty-five thousand dollars or imprisonment for not more than ten years, or by both fine and imprisonment.
OK then.