What’s splitting a new generation of haves and have-nots

Political scientist Robert Putnam grew up in Port Clinton, Ohio, a town where, he says, both rich and poor children grew up together and had bright opportunities. But in the past few decades, social mobility has declined and the haves and have-nots have become increasingly segregated. Economics correspondent Paul Solman offers a look at what drove Putnam to write his new book, “Our Kids.”