Scholar Eddie Glaude Jr. reflects on America at 250

Glaude's book , ' America, U.S.A.,' looks at the country through the lens of its previous anniversaries and centennials. Today, as in the past, he tells Tonya Mosley, "the divided soul of the nation is in full view." As the 250th anniversary approaches, he says it's time for the U.S. to acknowledge the ways it has failed to deliver on its founding principles. "America has to grow up. It can no longer hide in its adolescence," he says. Also, Maureen Corrigan recommends three books to help you jum