Bill and Willie Geist in Conversation with Mike Barnicle

After revealing to the public that he was battling Parkinson's disease, CBS News Sunday Morning correspondent Bill Geist wrote a book with his son, Today show host Willie Geist. Good Talk, Dad: The Birds and the Bees…and Other Conversations We Forgot to Have details their bond through intimate family stories, which they discuss tonight with MSNBC's Mike Barnicle.