World leaders react to a historic shift in U.S. policy toward Cuba. Pakistan buries victims of a school massacre by the Taliban. And U.S. officials say North Korea is behind the hacking of Sony Pictures. A panel of journalists joins Diane for analysis of the week's top international news stories.
A pediatric psychiatrist and a philosophy professor come together to present their new hypothesis on one of the most debated questions of human development — how our ancestors made the leap from simple, genetically programmed behavior to more sophisticated language, thinking and culture.
- Stuart Shanker professor at York University in Toronto, Canada.
- Stanley Greenspan clinical professor of psychiatry and pediatrics at George Washington University Medical School
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A panel of journalists joins Diane for analysis of the week's top national news stories.
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Cuba releases American contractor Alan Gross after five years' imprisonment on espionage charges. The U.S. releases several Cubans in exchange. Details on the prisoner swap and the future of U.S.-Cuban relations.