Ted Deutch, the Democratic congressman from Florida, joins Christiane Amanpour to discuss his bipartisan approach to climate change. David Blight, the Pulitzer prize-winning author of "The Life and Times of Frederick Douglass" talks about the legacy of the abolitionist icon. Our Hari Sreenivasan talks to Mark Bertolini, the former CEO of Aetna, about the state of healthcare in America.To learn more about how CNN protects listener privacy, visit cnn.com/privacy