At a time of unprecedented national power, why do so many Americans believe that our nationhood is fragile and precarious? Why the talk--among politicians, academics, and jurists--of "coups d'etat," of culture wars, of confederation, of constitutional breakdown? In this wide-ranging book, Robert Nagel proposes a surprising znswer: that anxiety about national unity is caused by centralization itself. Moreover, he proposes that this anxiety has dangerous...