"In early December 1971, he signed a rather flat defense of Bob Dylan, who had suffered months of harassment from a "fan" named A. J. Weberman: "A.J. claims everything Dylan writes is either about Weberman or about heroin. What bullshit," the letter read. "It is time we defended and loved each other--and saved our anger for the true enemy, whose ignorance and greed destroys our planet." The letter was signed: "The Rock Liberation Front, David Peel, Jerry Rubin, Yoko Ono, John Lennon."