K.G. ROBERTSON previously taught sociology at the University of Reading and was Director of Security Studies in the Graduate School of European and International Studies. He now runs his own intelligence management consultancy, AnalyticA Research. In 1993 he formed the Security and Intelligence Studies Group (SISG), a specialist group of the Political Studies Association, which has established itself as the leading UK body for the academic study of security intelligence issues. He is the author of six book and many articles on aspects of risk, intelligence and secrecy. His books include British and American Approaches to Intelligence, and Public Secrets - A Study in the Development of Government Secrecy.