Elizabeth Pisani: Sex, drugs and HIV — let’s get rational

Armed with bracing logic, wit and her “public-health nerd” glasses, Elizabeth Pisani reveals the myriad of inconsistencies in today’s political systems that prevent our dollars from effectively fighting the spread of HIV. Her research with at-risk populations — from junkies in prison to sex workers on the street in Cambodia — demonstrates the sometimes counter-intuitive measures that could stall the spread of this devastating disease.