What values and ideas have shaped the world's lone superpower?Jacob Needleman: Professor of philosophy at San Francisco State University, in a speech from the Westminster Town Hall Forum in downtown Minneapolis. Needleman has written more than a dozen books, including "The American Soul: Rediscovering the Wisdom of the Founders," "Two Dreams of America" and "The Wisdom of Love." He was also a contributor to the PBS program "A World of Ideas." Westminster Town Hall Forum