Your stigmatising language around mental illness means I&#x27;m unable to answer this question and stay within HN rules. Just remember that many of those people didn&#x27;t have signs of mental illness and were not known to MH services; and that people with mental illness are more likely to be the victims of violence than the perpetrators of violence.<p>But the US has had doctors killed and medical clinics bombed by Christian groups. Anti-abortionist protesters try to deny women their reproductive rights and regularly threaten doctors and nurses and admin staff at medical clinics. (This is a war crime if a state does it.)<p>Here&#x27;s what the FBI said in 2002: <a href="https:&#x2F;&#x2F;www.fbi.gov&#x2F;news&#x2F;testimony&#x2F;the-terrorist-threat-confronting-the-united-states" rel="nofollow">https:&#x2F;&#x2F;www.fbi.gov&#x2F;news&#x2F;testimony&#x2F;the-terrorist-threat-conf...</a><p>&gt; At the same time, the United States also faces significant challenges from domestic terrorists. In fact, between 1980 and 2000, the FBI recorded 335 incidents or suspected incidents of terrorism in this country. Of these, 247 were attributed to domestic terrorists, while 88 were determined to be international in nature.