The latest research into the link between germs and mental illness -- and what we all need to know.
The New York Times’ Thomas Friedman won his third Pulitzer Prize this year for his columns written after the 9/11 attacks. Over the past year, he has traveled extensively in the Middle East and other parts of the world. He joins Diane to talk about his new book.
- Thomas Friedman "New York Times" columnist and author of "Longitudes and Attitudes: Exploring the World After September 11," "From Beirut to Jerusalem," and "The Lexus and the Olive Tree: Understanding Globalization."
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