This episode we talk with Robert Sampson about his new book, Great American City: Chicago and the Enduring Neighborhood Effect. In the face of globalization and the widespread belief that the “world is flat,” Sampson shows how the world is actually very uneven, and that local communities make a great difference in how people live their lives across a wide range of phenomenon, from homicide and child health, to leadership networks, teenage pregnancy, altruism, and home foreclosures.