South Carolina has a terrorist registration law. So if you are part of Al-Queda or the Tamil Tigers, or Jamiat-e Islami or any other subversive or terrorist group you need to fill out some forms and paperwork and pay a $5 registration fee to the state of South Carolina.
The South Carolina terrorist registration law is actually called the Subversive Activities Registration Act. Section 23-29-20 of the Act says:
(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;
(2) "Organization subject to foreign control" means every corporation, society, association, camp, group, bund, political party, assembly, body or other organization, composed of two or more persons, which comes within either of the following:
(a) it solicits or accepts financial contributions, loans or support of any kind directly or indirectly from, or is affiliated directly or indirectly with, a foreign government or a political subdivision thereof, an agent, agency or instrumentality of a foreign government or political subdivision thereof, a political party in a foreign country or an international political organization or
(b) its policies, or any of them, are determined by or at the suggestion of, or in collaboration with, a foreign government or political subdivision thereof, an agent, agency or instrumentality of a foreign government or a political subdivision thereof, a political party in a foreign country or an international political organization;
(3) "Foreign agent" means any person whose actions, or any of them, are determined by or at the suggestion of, or in collaboration with, a foreign government or political subdivision thereof, an instrumentality or agency of a foreign government or political subdivision thereof, a political party in a foreign country or an international political organization; and
The real kicker of the South Carolina terrorist registration act are Sections 23-29-50 and 23-29-60
"SECTION 23-29-50. Registration by subversive and foreign-controlled organizations.
Every subversive organization and organization subject to foreign control shall register with the Secretary of State on forms prescribed by him within thirty days after coming into existence in this State.
SECTION 23-29-60. Registration of members of subversive and foreign-controlled organizations.
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."