, professor of History at Harvard University and the author of The Ascent of Money: A Financial History of the World
(Penguin Press HC, 2008), and Peniel Joseph
, associate professor of African-American Studies and History at Brandeis University, contributor to The NewsHour with Jim Lehrer
, and the author of Waiting' Til the Midnight Hour: A Narrative History of Black Power in America
, discuss the future of US global leadership.