Brandenburg v. Ohio: A state may not forbid speech advocating the use of force or unlawful conduct unless this advocacy is directed to inciting or producing imminent lawless action and is likely to incite or produce such action.| Justia Law
Whoever incites, sets on foot, assists, or engages in any rebellion or insurrection against the authority of the United States or the laws thereof, or gives aid or comfort thereto, shall be fined under this title or imprisoned not more than ten years, or both; and shall be incapable of holding any office under the United States.| LII / Legal Information Institute