Paul E. Peterson is the Henry Lee Shattuck Professor of Government at Harvard, the director of PEPG, and a senior fellow at the Hoover Institution. He is author or editor of numerous books, including The Education Gap: Vouchers and Urban Schools, with William G. Howell (Brookings, 2004 and 2006). He is coeditor (with Martin West) of No Child Left Behind? The Practice and Politics of School Accountability (Brookings, 2003).Barry G. Rabe is a professor of environmental policy in the School of Natural Resources and Environment and professor of public policy in the Gerald R. Ford School of Public Policy at the University of Michigan. He also directs the university's new Program in Environment. Rabe is the author of Beyond NIMBY.Kenneth K. Wong is assistant professor of political science at the University of Oregon.