"Absoliutno blagopoluchnoe ozero Baikal " the Russian scientist looking out over the great lake says. "Lake Baikal is Perfect " And humans can never harm it. For a man cut loose from his life in the U.S., Lake Baikal-Siberia's sacred inland sea-becomes a place of pilgrimage, the focal point of a 25,000-mile journey by land and sea in search of connection, permanence, restoration and hope. Following a difficult divorce, veteran environmental...