Former American Cancer Society chief medical officer Dr. Otis Brawley looks back on advances in cancer 50 years after President Richard Nixon signed the National Cancer Act. Journalist Dawn Turner about her book "Three Girls from Bronzeville: A Uniquely American Memoir about Race, Fate, and Sisterhood," which explores the divergent life paths of herself, her sister and her best friend who all grew up in the Bronzeville neighborhood of Chicago, Illinois.