The author maintains that American politics, institutional arrangements, and political culture have prevented the development of a comprehensive, integrated, intermodal transportation policy in the United States. Dilger makes his argument by examining the development of the national governmental authority in both surface and air transportation. Each transportation mode—highways/mass transit, Amtrak, and civilian air transportation—is examined separately, assessing their development over time and focusing on current controversies, including, but not limited to, the highway versus mass transit funding issue; the recent decentralization of decision making authority on surface transportation policy; Amtrak's viability as an alternative to the automobile; and current antiterrorist policies' effect on transportation policy.