Sheila Jasanoff William A. Lester Jr. Simon A. Levin Marcia C. Linn Michael J. Novacek Anna C. Roosevelt Jean E. Taylor Nancy S. Wexler William T. Golden Treasurer Richard S. Nicholson Executive Officer * SCIENCE (ISSN 0036-8075) is published weekly on Friday, except the last week in December, by the American Association for the Advancement of Science, 1200 New York Avenue, NW, Washington, DC 2...