Ganges River: Sacred yet toxic

Art Boucher is an American from Boston who moved to India a decade ago to study transcendental meditation. The Ganges is "the source of the spiritual life of this entire country," he says. "When people take a dip in the river... you experience the source of what you are as a human being and as the source of the whole universe. And you come out of that purified and refreshed." (Nicholas Schifrin/ABC)