Nine years ago, former FBI agent Robert Levinson disappeared in Iran while on a mission for the CIA. The story of his secret journey to Iran, the CIA cover-up that followed and efforts to rescue the longest-held U.S. hostage.
New color photos from the surface of Mars confirm the color of the "red planet," but more interesting to scientists is the data being captured by the Spirit rover. Diane and her guests talk about what’s being learned about Mars and the future of space exploration.
- Robert Craddock Geologist, National Air and Space Museum Center for Earth and Planetary Studies
- Jim Garvin NASA's lead scientist for Mars exploration
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President Barack Obama lifts the embargo against U.S. arms sales to Vietnam. We discuss what closer ties between the U.S. and Vietnam mean for trade, leverage on human rights and growing concerns over China's military expansion.
Mary Chapin Carpenter joins Diane to talk about her new album, the "artistic insight of middle age" and rewriting her life story in new ways.
Now that only three major candidates remain in the 2016 race for the White House, attention turns to the details of their policy proposals. Where the presidential candidates stand on key issues like job creation, healthcare, taxes and education.