Debates regarding firearm availability and gun violence in the United States have been characterized by concerns about the right to bear arms, such as found in the Second Amendment to the U.S. Constitution, and the responsibility of the United States government to serve the needs of its citizens and to prevent crime and deaths. Firearms regulation supporters say that indiscriminate or unrestricted gun rights inhibit the government from fulfilling that responsibility, and causes a safety concern. Gun rights supporters promote firearms for self-defense – including security against tyranny, as well as hunting and sporting activities. Firearms regulation advocates state that restricting and tracking gun access would result in safer communities, while gun rights advocates state that increased firearm ownership by law-abiding citizens reduces crime and assert that criminals have always had easy access to firearms.