Her new book Assassin of Youth: A Kaleidoscopic History of Harry J. Anslinger's War on Drugs is a biography of America's first drug czar who popularized the term 'marijuana' and ushered in the Reefer Madness period of drug prohibition. A master propagandist prone to demonizing ethnic and immigrant groups, Anslinger's ideas laid the foundation for the modern drug war and brought awareness of cannabis to the American masses.