A massive forest fire has been raging in Alberta, Canada, for nearly a month. Scientists say warmer, drier weather has increased the frequency and intensity of fires. For this month's Environmental Outlook: wildfires, climate change and threats to North America’s forests.
Diane and her guests discuss the revelations so far in the perjury trial of former White House aide Lewis “Scooter” Libby, and what they tell us about the White House and the press.
- John Dickerson chief political correspondent for Slate.com and CBS political analyst and contributor. Author of "On Her Trail: My Mother, Nancy Dickerson, TV News' First Woman Star."
- Michael Isikoff investigative correspondent for "Newsweek," a frequent guest on MSNBC and other cable news networks, and co-author of "Hubris: The Inside Story of Spin, Scandal and the Selling of the Iraq War" with David Corn.
- Byron York chief political correspondent, "Washington Examiner," and author of "The Vast Left Wing Conspiracy."
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