Our ambivalent relationship with marijuana

    Michael Phelps, Olympic gold medallist, will not face charges after a photograph showed him using a marijuana pipe. His case raises the question of the ambivalent relationship our country has with this drug. Our guests are RICHARD BONNIE, Director of the Institute of Law, Psychiatry and Public Policy at the University of Virginia Schools of Law and Medicine and MARINA GOLDMAN, Research Instructor at the Addiction Treatment Research Center at the University of Pennsylvania. She studies how marijuana effects the brain. Listen to the mp3

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