In 1970, the Black Panthers invited him to the United States, where he stayed for three months giving lectures, attended the trial of their leader, Huey Newton, and published articles in their journals.
I 1970 inviterede De Sorte Pantere ham til USA, hvor han opholdt sig i tre måneder, mens han gav forelæsninger, mødte op til sagen mod deres leder, Huey Newton, og fik trykt artikler i deres tidsskrift.