of her research is to implement interventions aimed at helping people make better decisions in the face of often unseen social influences. Dr. Downs earned her Ph.D. from Princeton University.

WILLIAM R. FREUDENBURG is Dehlsen Professor of Environmental Studies at the University of California at Santa Barbara. He is a specialist on the human aspects of risk assessment and risk management and has done extensive research on nuclear and other energy technologies. He has served as chair of Section K (social, economic, and political sciences) of the American Association for the Advancement of Science. He has served on several NRC committees and federal advisory committees relating to energy and waste management issues. He was the first congressional fellow from the American Sociological Association to serve in the U.S. House of Representatives. Dr. Freudenburg received his Ph.D. in sociology from Yale University in 1979.

DEIRDRE LAWRENCE is an epidemiologist in the Risk Factor Monitoring and Methods Branch in the Division of Cancer Control and Population Sciences at the National Cancer Institute (NCI). Her current research interests include applying surveillance, statistical and epidemiologic research concepts to monitor trends of tobacco use in the United States, and analyzing disparities in predictors and patterns of cancer-related risk factors. At NCI, her current responsibilities include planning, initiating, coordinating, and conducting research related to the surveillance of tobacco use, particularly among U.S. population subgroups. In addition, Dr. Lawrence is a member of the NCI Special Studies Institutional Review Board (IRB), and she reviews and contributes to technical reports and conference planning activities relevant to improving tobacco surveillance and reducing cancer-related health disparities. Dr. Lawrence earned her Ph.D. in toxicology from the Massachusetts Institute of Technology and an M.P.H. from the Harvard School of Public Health.

SUSANNA HORNIG PRIEST is director of research for the College of Mass Communications and Information Studies at the University of South Carolina. Formerly, she served as associate professor and director of the Texas A&M University M.S. Program in Science and Technology Journalism. She is the author of a book, A Grain of Truth, and a number of other published studies of the relationship between media coverage, public opinion formation, and public policy development for biotechnology. In collaboration with colleagues across Europe and North America, she has also been involved in recent years in a major comparative study of how these dynam-



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