Barack Obama was elected on a message of change, promising a new era of diplomacy and international cooperation – but can the President deliver a new vision of America? Reporting from the world's most troubled hotspots, Mark Danner has seen countless deaths over ethnic and political divides, and witnessed firsthand how U.S. attempts to exploit those conflicts have resulted in disastrous unforeseen consequences. Danner speaks with Bill Moyers about Obama's challenges in resetting the mindset of America from war to peace, and redefining the US as a nation. Danner was a staff writer for many years at The New Yorker, contributes frequently to the New York Review of Books, the New York Times Magazine, and his latest book is Stripping Bare the Body, which chronicles the moral history of American power over the last quarter century.