Pulitzer Prize-winning biographer Jon Meacham on the evolution of Abraham Lincoln's moral principles and political leadership -- and what the era of Lincoln can teach us about the state of our democracy today.
Diane and her guests talk about Iran’s latest nuclear achievement and why one expert calls the emerging confrontation over Iran’s nuclear program a “Cuban missile crisis in slow motion.”
- Graham Allison Former assistant secretary of defense, professor of government at the Harvard University John F. Kennedy School of Government, and author of "Essence of Decision: Explaining the Cuban Missile Crisis."
- Reuel Marc Gerecht Senior fellow at the Foundation for Defense of Democracies, former Middle East specialist for the CIA
- Shaul Bakhash Professor of history at George Mason University
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