Ruth Schwartz Cowan, the Janice and Julian Bers Professor of the History and Sociology of Science at the University of Pennsylvania, delivers the 2008 Miller Lecture on Science and Ethics in the Bartos Theater on Nov. 17. The lecture, hosted by the MIT Program in Science, Technology, and Society, was entitled “Climbing up the Slippery Slope: the History of Genetic Screening,” and focused on discrediting the link between prenatal genetic testing and eugenics.