David Rubenstein's new book explores what it means to be an American and how that definition evolves

David M. Rubenstein, philanthropist, historian and co-founder of the private equity firm The Carlyle Group, has written a series of books that examine how America was founded, shaped and inspired people worldwide to dream. His latest book, “The American Experiment,” gets to the heart of what it means to be an American and how that definition evolves with each generation through social movements and cultural shifts.