Lesley Stahl on 25 Years at '60 Minutes' and Her Latest Investigation: Becoming a Grandmother

Emmy Award-winning journalist Lesley Stahl was a CBS News White House Correspondent, and then spent 25 years as a correspondent with “60 Minutes.” She covered Watergate, interviewed Margaret Thatcher, and reported from inside Guantanamo Bay. Stahl joins us to reflect on her career, the changing face of media, and the joy of becoming a grandmother, which she chronicles in her new book, “Becoming Grandma.”