Sarah Franklin is Professor of Social Studies of Biomedicine and Associate Director of the BIOS Centre for the study of bioscience, biomedicine, biotechnology, and society at the London School of Economics and Political Science. She is the author of Embodied Progress: A Cultural Account of Assisted Conception; a coauthor of Born and Made: An Ethnography of Preimplantation Genetic Diagnosis and Technologies of Procreation: Kinship in the Age of Assisted Conception; and a coeditor of Relative Values: Reconfiguring Kinship Studies, also published by Duke University Press.