So, they were part of the Weather Underground led by Bill Ayers, indicted for terrprism and later charges dismissed.
All major federal charges against him were
dismissed in 1974 (before he surfaced) and confirmed upon his surrender due to
prosecutorial misconduct. This misconduct included the FBI's use of illegal wiretaps, unconstitutional investigation methods, and unauthorized break-ins.
Members of the
Weather Underground Organization (WUO), collaborating with the Black Liberation Army, were involved in a fatal 1981 Brink's armored car robbery in New York. Kathy Boudin, David Gilbert, and Judy Clark were convicted for their roles in the robbery and subsequent shootout that killed a guard and two police officers.
Further;
...
William Charles Ayers (
/ɛərz/; born December 26, 1944) is an American retired professor and former community organizer. In 1969, Ayers co-founded the far-left militant organization the
Weather Underground, a revolutionary group that sought to overthrow the United States government which they viewed as
American imperialism. During the 1960s and 1970s, the Weather Underground conducted a campaign of bombing public buildings in
opposition to U.S. involvement in the Vietnam War. The bombings caused no fatalities, except for three members killed when one of the group's devices accidentally exploded. The
FBI described the Weather Underground as a
domestic terrorist group. Ayers was hunted as a fugitive for several years, until charges were dropped due to illegal actions by the FBI agents pursuing him and others.
Ayers went on to become a professor in the College of Education at the
University of Illinois at Chicago, holding the titles of Distinguished Professor of Education and Senior University Scholar. During the
2008 U.S. presidential campaign, a
controversy arose over his contacts with then-candidate
Barack Obama. Investigations by
The New York Times,
CNN, and other news organizations concluded that Obama did not have a close relationship with Ayers. He is married to lawyer and law professor
Bernardine Dohrn, who was also a leader in the Weather Underground.
...
Ayers was influenced at a 1965 Ann Arbor
teach-in against the
Vietnam War, when
Students for a Democratic Society (SDS) President Paul Potter, asked his audience, "How will you live your life so that it doesn't make a mockery of your values?" Ayers later wrote in his memoir,
Fugitive Days, that his reaction was: "You could not be a moral person with the means to act, and stand still. [...] To stand still was to choose indifference. Indifference was the opposite of moral".
...
en.wikipedia.org
Would seem violent Left wing anti-USA has been an on-going, continuous project for @ 60+ years.