Support WBURFor Hasidic Jews, A Slow, Steady Rebirth In RussiaPlay05:06Download AudioCorey FlintoffSeptember 25, 2012 ShareDovid Karpov has been the rabbi at the Darkei Shalom synagogue since it was built 15 years ago. Like many people in his congregation, Karpov grew up in a Soviet-era family that was not religious. He says he had to learn his faith for himself. (NPR)