Few American writers have mapped the human heart with more care than Joyce Carol Oates. She's written dozens of books in a dizzying number of genres. And the only thing her many literary efforts share in common is their author's unflagging empathy. Oates' new book, "Black Girl White Girl," explores the tenuous relationship between black and white roommates at a prestigious liberal arts college in the 1970's. It's a raw, coming-of-age story about race in America and a legacy of misunderstanding that persists to this day.