Free speech is regulated. You do not have the right to incite violence, threaten a person, commit slander or libel or infringe on intellectual property rights. Felons do not have the right to bear arms. Certain classes of weapons such as sawed-off shotguns and automatic weapons are illegal or heavily regulated.

District of Columbia v. Heller, 2008: "Like most rights, the Second Amendment right is not unlimited. It is not a right to keep and carry any weapon whatsoever in any manner whatsoever and for whatever purpose: For example, concealed weapons prohibitions have been upheld under the Amendment or state analogues. The Court’s opinion should not be taken to cast doubt on longstanding prohibitions on the possession of firearms by felons and the mentally ill, or laws forbidding the carrying of firearms in sensitive places such as schools and government buildings, or laws imposing conditions and qualifications on the commercial sale of arms."