This week's broadcast, hosted by Jane Pauley, features Tony Dokoupil's cover story on how parents who lost loved ones in the Sandy Hook school shooting are suing an online purveyor of conspiracy theories about their children's murders. Also: Lee Cowan talks with Candice Bergen about the return of "Murphy Brown"; Rita Braver interviews famed Hollywood agent Michael Ovitz; Mo Rocca visits an exhibition celebrating the centennial of composer-conductor Leonard Bernstein; and RuPaul explains to Nancy Giles the power of a man performing in women's clothes, heels and makeup.