a conservative Christian philosophy, and they often disseminate false medical information, usually but not exclusively about the supposed health risks and mental health risks of abortion. The centers usually provide peer counseling against abortion, and sometimes also offer adoption referrals or baby supplies. Most are not licensed and do not provide medical services, though some offer sonograms, claiming that women who see such sonograms decide not to have an abortion. Legal and legislative action regarding CPCs has generally attempted to curb false or deceptive advertising undertaken in pursuit of the anti-abortion cause. Several thousand CPCs exist in the United States, often operating in affiliation with one of three umbrella organizations (Care Net, Heartbeat International, and Birthright International), with hundreds in other countries. By 2006, U.S. CPCs had received more than $60 million of federal funding, including some funding earmarked for abstinence-only programs, as well as state funding from many states. Specialty license plates In the United States, some states issue specialty license plates that have an anti-abortion theme. Choose Life, an advocacy group founded in 1997, was successful in securing an anti-abortion automobile tag in Florida. Subsequently, the organization has been actively helping groups in other states pursue "Choose Life" license plates. Abortion health risk claims Some anti-abortion organizations and individuals disseminate false medical information and unsupported pseudoscientific claims about alleged physical and mental health risks of abortion. Many right-to-life organizations claim that abortion damages future fertility, or causes breast cancer, which is contradicted by the medical professional organizations. Some states, such as Alaska, Mississippi, West Virginia, Texas, and Kansas, have passed laws requiring abortion providers to warn patients of a link between abortion and breast cancer, and to issue other scientifically unsupported warnings. Some right-to-life advocacy groups allege a link between abortion and subsequent mental-health problems. Some U.S. state legislatures have mandated that patients be told that abortion increases their risk of depression and suicide, despite the fact that such risks are not supported by the bulk of the scientific literature, and are contradicted by mainstream organizations of mental-health professionals such as the American Psychological Association. Violence Violent incidents directed against abortion providers have included arson and bombings of abortion clinics, and murders or attempted murders of physicians and clinic staff, especially the doctors that provide abortions. Acts of violence against abortion providers and facilities in North America have largely subsided following a peak in the mid-1990s which included