W. James Potter is Professor of Communication at the University of California, Santa Barbara. A holder of a Ph.D. in Communication Theory and another in Instructional Systems, he has also taught at Western Michigan University, Florida State University, Indiana University, UCLA, and Stanford University. He is a former editor of the Journal of Broadcasting & Electronic Media . He has published numerous scholarly articles, book chapters, and 20 books, including Media Effects, The 11 Myths of Media Violence, Theory of Media Literacy, and Arguing for a General Framework for Mass Media Scholarship.Martha Derthick retired in 1999 from the Department of Government and Foreign Affairs at the University of Virginia, where she was the Julia Allen Cooper Professor. She is the author of numerous books on American government, including: Dilemmas of Scale in America's Federal Democracy (editor, 1999) ; Agency Under Stress: The Social Security Administration in American Government (1990); The Politics of Deregulation (with Paul J. Quirk, 1985); and Policymaking for Social Security (1979), which won the Kammerer Prize of the American Political Science Association as the best book of the year on American public policy. Before going to the University of Virginia, she was for twelve years a member of the Governmental Studies Program of The Brookings Institution, and was the program's director between 1978 and 1983. She has also taught at Dartmouth College, Stanford University, Harvard University, and Boston College.