How is it that so many young men and women born and raised in secular, post-Christian, democratic societies in Western Europe (or the U.S.) acquire the passion to kill and die for Islam?

U.S. Hispanics are not—most of them, anyway—laying claim to a united territory. It may therefore be objected that Hispanics cannot become a “nation” because they have neither a flag nor a land to fly it over. And if they did, where would it be? A secessionist chunk of the American Southwest? East Harlem? Miami?