What fueled Mary's strength?

Her mother Mary's death left acclaimed Indian writer, author of The God of Small Things, Arundhati Roy feeling "unanchored in space with no coordinates," even though she'd often been a target of Mary's wrath. Roy talks to Matt Galloway about her new memoir, "Mother Mary Comes to Me," revealing their fraught relationship, and how her mother's trailblazing character influenced Roy's writing.