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.
The House of Representatives defied President Bush’s threatened veto and passed legislation that would loosen restrictions on federally funded stem cell research. Diane and her guests talk about the implications for U.S. researchers and for the larger stem cell debate.
- Dr. John Gearhart Director, Institute for Regenerative Medicine, at the University of Pennsylvania
- Rick Weiss Science reporter for "The Washington Post"
- Fr. Kevin FitzGerald Molecular biologist, chair in Catholic Health Care Ethics at Georgetown University, and Catholic priest
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