Rep. Speier's stunning story of survival during Jonestown massacre

This Sunday marks 40 years since 900 Americans died in the jungles of Central America in what became known as the "Jonestown massacre." Andrea Mitchell is joined by Congresswoman Jackie Speier- who now serves on the Intelligence and Armed Services Committees. She's written about Jonestown in her new book: "Undaunted: Surviving Jonestown, Summoning Courage, and Fighting Back.”