Roger Roffman is a UW professor emeritus of social work who has studied marijuana dependence interventions for 30 years, and was a sponsor of Initiative 502, which legalized recreational marijuana in Washington. In an interview with UW News and Information, he answered a few questions about his new book, “Marijuana Nation: One Man’s Chronicle of America Getting High: From Vietnam to Legalization.” The book follows Roffman’s exposure to marijuana while serving as a US Army officer in Vietnam, his personal use (and cessation of use), and his research and activism on behalf of patients who would benefit from medical marijuana. From lobbying in Washington, to talking to doctors and nurses in oncology wards, and watching his brother struggle with addiction, Roffman has experienced the layered and complex relationship Americans have with marijuana first-hand. He was a co-sponsor of Washington State Initiative 502, which legalized marijuana for adults.