Sunday Morning's Essential American Soundbook

This special broadcast includes Mo Rocca’s look at the Founding Fathers, Lee Cowan’s trip along Route 66, Luke Burbank’s exploration of America’s food melting pot and David Pogue’s story on how the railroad changed the country. Special correspondent Susie Essman sits down with her friend Larry David to talk about his new series “Life, Liberty and the Pursuit of Unhappiness,” Martha Teichner…