Religion: Are You a Jew?

Along Manhattan's Avenue of the Americas, across from Radio City Music Hall, the young men in their black hats and beards stand poised for action in the summer heat. "Are you Jewish?" they ask startled passersby. "Racially Jewish," is the inaccurate reply of one tanned, neatly barbered man. "But not religiously." "Yes," mutters another hurrying by, "but I don't have time to stop." A middle-aged woman takes the counteroffensive: "So what's all this about?" She waves in the direction of a van parked near by, emblazoned with a banner reading "Mitzvah Mobile." Inside,...