Mark Arax on chasing water and dust across California

Mark Arax, a long-time California journalist, talks about the epic history of water in the Golden State. His new book, "The Dreamt Land," is a real-life "Chinatown," examining the water wars fought between farmers, activists, corporations, and governments. The story of the movement of water in California appears as a Rosetta Stone for understanding how these arteries of water literally and figuratively tie the state together