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.
Four more American soldiers have been killed in Afghanistan in the last two days. Analysis of U.S. strategy options as President Obama continues deliberations on deployment numbers and overall U.S. objectives
- Michael O'Hanlon Senior fellow, foreign policy studies, the Brookings Institution.
- Amb. Richard Haass President, Council on Foreign Relations and author of "A War of Necessity, War of Choice: A Memoir of Two Iraq Wars"
- Paul Pillar Director, graduate studies at the Center for Peace and Security Studies at Georgetown University and a former CIA National Intelligence officer
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