The Vietnam teach-ins are passé, but severe questioning and criticism persist in both the popular and semipopular press and, significantly, in the imposing array of books issued by commercial publishers. Unlike the realist-idealist dichotomy of the late 1940's and early 1950's, which was confined to the academic community, the result of our present involvement in an Asian war is a debate of national proportions, not only about Vietnam but about the nature of America's role and responsibility in international life and about priorities in domestic and foreign policies. Inevitably, much of the literature is polemical, hammering on the major theme: the Johnson Administration has led American foreign policy astray; thus alternatives must be sought.