As the population of ultra-Orthodox Jews in the United States increases to astonishing proportions, veteran New York Times journalist Joseph Berger takes us inside the notoriously insular world of the Hasidim to explore their origins, beliefs, and struggles--and the social and political implications of their expanding presence in America. Though the Hasidic way of life was nearly extinguished in the Holocaust, today the Hasidim--"the pious ones"--have...