This week's broadcast, hosted by Jane Pauley, features Martha Teichner's cover story on the history of the "Green Book" travel guides used by African Americans during segregation. Plus: Gayle King visits as Carole King takes to the stage in the Broadway musical "Beautiful"; Tracy Smith splatters paint with British artist Damien Hirst; Tony Dokoupil talks with filmmaker M. Night Shyamalan ("Glass"); Conor Knighton goes island-hopping to Saint Pierre and Miquelon, French territories in the New World; and Nancy Giles referees a pie fight over the birthplace of Key Lime Pie.