" Ehrlichman explained that the Nixon White House “had two enemies: the antiwar left and black people. . . . We knew we couldn’t make it illegal to be either against the war or black, but by getting the public to associate the hippies with marijuana and blacks with heroin, and then criminalizing both heavily, we could disrupt those communities. We could arrest their leaders, raid their homes, break up their meetings, and vilify "

― Michael Pollan , This Is Your Mind on Plants