The National Center on Addiction and Substance Abuse at Columbia UniversityThe National Center on Addiction and Substance Abuse (CASA) at Columbia University was founded in 1992 by Joseph A. Califano, Jr., who served as President Lyndon Johnson's chief assistant for domestic affairs and as Secretary of Health, Educaton, and Welfare under President Jimmy Carter. CASA is a research and policy organization dedicated to combating substance abuse, bringing together the professional disciplines necessary to study and combat abuse of all substances--alcohol, tobacco, and illegal, prescription, and performance-enhancing drugs--in all sectors of society. Read More Read Less