Carl Hart is an associate professor in the departments of Psychology and Psychiatry at Columbia University. He is also a research scientist in the Division of Substance Abuse at the New York State Psychiatric Institute. Dr. Hart is a member of the National Advisory Council on Drug Abuse and on the board of directors of the College on Problems of Drug Dependence and the Drug Policy Alliance. A native of Miami, Florida, Dr. Hart received his BS in psychology at the University of Maryland and his MS and PhD in experimental psychology and neuroscience at the University of Wyoming. He lives in New York City.