John Tulloch is Professor of Communication, University of Newcastle, Australia. He is the author of 18 books in media and television studies, film history and theory, literary and theatre studies, and the sociology of risk. His books include the widely cited Risk and Everyday Life (with Deborah Lupton, Routledge, 2003) and monographs on Doctor Who (1984), A Country Practice (1986) and Trevor Griffiths (2007).

R. Warwick Blood is Professor of Communication, Faculty of Arts and Design, University of Canberra, Australia. Previously, he was a reporter, foreign correspondent and producer for the Australian Broadcasting Corporation. He has published on risk, and news reporting and portrayal of health issues.