Authenticity has begun to rival development as a key to understanding the political aspirations of the Islamic world. Almost everywhere modernity has laid waste to tradition, those habits and practices deemed to be timeless and true. Imperialism carried European notions of progress into Muslim-dominated parts of the globe, and subsequently Muslims themselves espoused Western practices, techniques, and philosophies. Regimes calling themselves liberal, socialist, and Arab nationalist all embraced modernity as their principal objective.Most of these regimes failed to create the promised better...