Story : Norah O'Donnell interviews Utah Senator Mitt Romney, who says he is no longer at home within the Republican Party. Tracy Smith attends recording sessions around the world for a Henry Mancini tribute album. Seth Doane talks with actress Aria Mia Loberti, star of "All the Light We Cannot See". Kelefa Sanneh profiles blues legend Buddy Guy. Rita Braver visits the newly-reopened National Museum of Women in the Arts. Mo Rocca's "Mobituaries" examines why sports legend Jim Thorpe inspired a Pennsylvania town to change its name to Jim Thorpe.