Megatrends, Miners, and the Human Mind

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4 segments
John and Doris Naisbitt were given unprecedented access to all of China’s provinces and cities…they'll tell us what they found about the changing country. Then, renowned paleontologist Peter Ward explains why he thinks only one of the Earth’s mass extinctions was caused by outside forces. Also, we’ll get a glimpse into the lives of Sandhogs, miners who work 800 feet below the street of Manhattan who are digging a 60-mile-long City Water Tunnel. Plus, Alan Alda, host of a three-part PBS series on what makes us human.