Video of the 1967 meeting in London of the “Symposium on the Dialectics of Liberation and the Demystification of Violence”, organized by R.D.Laing, with Allen Ginsberg, Paul Sweezey, Paul Goodman, Herbert Marcuse, Stokely Carmichael, Malcolm X, etc. An important record of the spectrum of leftwing politics and personalities during the turbulent Sixties.