Animal behaviorist Patricia McConnell tells Jim Fleming that dog-owners should be pack leaders but in the leadership style of Ghandi.
Intelligent. Optimistic. Curious.
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Astrophysicist Lawrence Krauss tells Steve Paulson that the latest news in cosmology is that the universe is still expanding and at an accelerating rate.
Musharraf Ali Farooqi is the translator of "The Adventures of Amir Hamza" and "Hoshruba."
Neuroscientist Jill Bolte Taylor nearly died from a massive stroke at the age of 37. The experience taught her life lessons on how the mind perceives the world.
Many in the environmental movement disagree with Brand. Paxus Calta is one. He's been an anti-nuclear activist for over 30 years. He gives his reasons for his position.
Documentary film-maker Errol Morris has made a film called "Standard Operating Procedure" about the American soldiers at Abu Ghraib. Morris and journalist Philip Gourevitch have written a companion book.
"Ghostwalk" is an intellectual thriller set partly in Isaac Newton's time and concerning his interest in alchemy.
Rachel Boynton's film, "Our Brand is Crisis" follows the efforts of an American political consulting firm which became involved in the Bolivian presidential election.
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