Everyone wants the spread of HIV to end. Heavy-handed policies and a zero-tolerance approach have been found to be ineffective. Despite new research findings of better approaches that could effectively curb the disease, many governments are still reluctant to adopt new policies, not least due to cultural factors. Ezra Zaid speaks with Dr. Chris Beyrer, Professor of Epidemiology at Johns Hopkins Bloomberg School of Public Health, and Immediate Past President of the International AIDS Society.