About politics and science -- The politics of contraception -- The global AIDS epidemic: could it have been prevented? / with Sandra Demars -- The stem cell controversy: navigating a sea of ethics, politics, and science / with Ryan Cauley -- Marijuana as medicine: science versus politics -- The quintessential catch-22: the U.S. approach to needle exchange in HIV AIDS prevention / with Ivan Ip -- Bleak house and beyond: how tuberculosis control got side-tracked -- Science, politics, and the regulation of dietary supplements -- Silicone breast implants: misconceptions, misinterpretations, and mistakes -- Obesity and public policy / with Joanna M. Paladino -- Disease prevention through vaccination: the science and the controversy / with Tony Rosen.