Maurizio Meloni is a Senior Research Fellow in the Department of Sociological Studies, University of Sheffield, UK. He is the author of the upcoming book Political Biology (2016) and has held two EU Marie Curie Fellowships, a Fulbright scholarship, and an Annual Membership (2014-2015) at the Institute for Advanced Study, School of Social Science, Princeton, NJ USA Simon Williams is Professor of Sociology at the University of Warwick. His publications include a co-edited collection Debating Biology (2003), and contributions to many other journals such as Body & Society, Sociology, Subjectivities, Sociology of Health & Illness and Social Science and Medicine. Paul Martin is Professor of Sociology at the University of Sheffield, and former Director of the Institute for Science and Society, University of Nottingham. He has published in journals such as BioSocieties, New Genetics and Society, Sociology of Health and Illness, and Social Science and Medicine.