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.
Today marks the fiftieth anniversary of launch of Sputnik I and the beginning of the cold war space race. An historian describes how the man behind Nazi Germany’s V-1 and V-2 rockets eventually led the American program to bring the U.S. up to par with the Soviet Union in space exploration.
- Michael Nuefeld Chair of the Space History Division of the Smithsonian's National Air and Space Museum and author of "The Rocket and the Reich."
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A panel of journalists joins Diane for analysis of the week's top national news stories.
Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
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.