Guest Robert Tansey discusses Harper Lee's first novel "Go Set a Watchman" since "To Kill a Mockingbird" was published in 1960. Is it a sequel? a prequel? Hosts Leigh Black Irvin and Scott Michlin discuss how themes in both novels are relevant to their depression-era setting, when they were written in the late 1950's and even today. Image credit: (image:Chip Somodevilla/Getty Images; HarperCollins)