Abortion, gun control, the death penalty, gay rights – the list of issues that divide Americans feels never ending. And Mugambi Jouet of Stanford University says these issues combine to make the U.S. the most polarized nation in the Western world. He joins us to talk about the cultural factors unique to our country that have paved the way for our disharmony, which he writes about in “Exceptional America: What Divides Americans from the World and from Each Other” (University of California Press).