Guma Aguiar is making up for lost time. Last week, the young billionaire sprinted through blizzard conditions in Russia and Ukraine, tracing the early history of Chabad in Haditch, where its founder, Rabbi Schneur

For 20 Russian Jewish boys from Brooklyn, Staten Island and New Jersey, a weeklong winter camp this past December in Monticello, New York, offered them an exhilarating change of scenery and spirit.