High Quality Content by WIKIPEDIA articles! Threatening the President of the United States is a class D felony under United States Code Title 18, Section 871. It consists of knowingly and willfully mailing or otherwise making "any threat to take the life of, to kidnap, or to inflict bodily harm upon the President of the United States". The United States Secret Service investigates suspected violations of this law and monitors those who have a history of threatening the President. Because the offense consists of pure speech, the courts have issued rulings attempting to balance the government`s interest in protecting the President with free speech rights under the First Amendment to the Constitution of the United States. According to Stalking, Threatening, and Attacking Public Figures, "Hundreds of celebrity howlers threaten the President of the United States every year, sometimes because they disagree with his policies, but more often just because he is the President." The United States Attorneys` Manual states that the Terrorism and Violent Crime Section has supervisory authority over Section 871 cases.