In the past several years two academic controversies have migrated from the classrooms and courtyards of college and university campuses to the front pages of national and international newspapers: Alan Sokal's hoax, published in the journal Social Text, and the self-named movement, "Perestroika," that recently emerged within the discipline of political science. Representing radically different analytical perspectives, these two incidents provoked wide controversy precisely because they brought into sharp relief a public crisis in the social sciences today, one that raises troubling...