Greg Hise is Associate Professor of Urban History and Planning at the University of Southern California and author of" Magnetic Los Angeles: Planning the Twentieth-Century Metropolis" (1997) and co-editor of "Rethinking Los Angeles" (1996). William Deverell is Professor of History at the University of Southern California and Director of the Huntington-USC Institute on California and the West. He is the author of "Railroad Crossing: Californians and the Railroad, 1850-1910" (California, 1994), coeditor "of California Progressivism Revisited" (California, 1994), and coeditor of "Metropolis in th...