We begin the hour with Eugene Dattel, author of "Cotton and Race in the Making of America: The Human Cost of Economic Power." The book charts the rise of "King Cotton" and the enormous influence which Cotton had in the emergence of America as an economic power and in fostering the slave trade at a point in time when it might otherwise have faded in significance. We then discuss how innovation works in the modern world with Vijay Vaitheeswaran, author of "Need, Speed, Greed."