John I. Gilderbloom is Professor of Urban and Public Affairs and Director of the Center for Sustainable Urban Neighborhoods at the University of Louisville. He is the coauthor (with Stella M. Capek) of Community versus Commodity: Tenants and the American City, also published by SUNY Press, and (with Richard P. Applebaum) of Rethinking Rental Housing. R. L. Mullins Jr. is Vice President of Science Applications International...