Ideological blinders have led to millions of preventable AIDS deaths in Africa. Dr. Edward C. Green, former director of the Harvard AIDS Prevention Project, describes how Western AIDS “experts” stubbornly pursued ineffective remedies and sabotaged the most successful AIDS prevention program on that ravaged continent. Drawing on 30 years of conducting research in Africa, Southeast Asia, and other parts of the world in international health, Green offers a set of evidence-based and experience-rich solutions to the AIDS crisis. He calls for new emphasis on promoting sexual fidelity, the only strategy shown by research to work. Controversial but important findings for health researchers, international development specialists, and policy makers.