"All my life," writes Conor Cruise O'Brien, "I have been fascinated and puzzled by nationalism and religion; by the interaction of the two forces, sometimes in unison, sometimes antagonistic." In these wide-ranging and penetrating essays, O'Brien examines how throughout the world today these age-old forces are once again threatening democracy, the rule of law, and freedom of expression -- particularly in the United States, the nation founded on Enlightenment...