From the transcript of the 1980s documentary No Place to Hide:
Griffin: Larry Grathwohl became a member of the Weather Underground organization as an undercover operative for law enforcement agencies in Cincinnati.
Grathwohl: I asked, "Well, what is going to happen to those people that we can't re‑educate, that are die-hard capitalists?" And the reply was that they'd have to be eliminated and when I pursued this further, they estimated that they'd have to eliminate 25 million people in these re‑education centers. And when I say eliminate, I mean kill 25 million people. I want you to imagine sitting in a room with 25 people, most of whom have graduate degrees from Columbia and other well-known educational centers and hear them figuring out the logistics for the elimination of 25 million people and they were dead serious.
Griffin: The Weather Underground Organization officially describes itself as follows: "...a revolutionary organization of communist men and women .... Our goal is the destruction of U.S. imperialism and the achievement of a classless state: world communism."
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Interview of William Ayers (April 2002): I considered myself partly an anarchist then, and I consider myself partly an anarchist now. I mean, I’m as much an anarchist as I am a Marxist [...] I know what I think, and I’ve very open about what I think, and nobody here is surprised by what I think.