'The Witches: Salem, 1692'

In 1692, the Massachusetts Bay Colony executed 14 women, five men, and two dogs for witchcraft. That's the first sentence of Stacy Schiff's new book, The Witches: Salem, 1692. Who were the women and men accused of witchcraft? Who were the people who sentenced them to death? And what lessons did the New World ultimately learn from the experience?