Elizabeth Edwards lost her son Wade when he was 16. She is living with terminal cancer. She has been through two presidential campaigns. Now she is, very publicly, coming to terms with her husband’s infidelity. What it takes to get through these tough times is the subject of her new book: Resilience: Reflections on the Burdens and Gifts of Facing Life's Adversities. Elizabeth Edwards joins The Takeaway to discuss the message of her book and her decision to write it.