Michael Walzer is one of America’s foremost political thinkers. A professor emeritus at the Institute for Advanced Study (IAS) in Princeton, New Jersey, Walzer’s books include Just and Unjust Wars (1977), On Toleration (1997), and Arguing about War (2004); he has served as editor of the political journal Dissent for more than three decades. He talked to Fathom Editor Alan Johnson.