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.