From the dawn of time, men and women have engaged in a struggle over how to peacefully coexist. Stephen Marche joins us to talk about the many places that members of the opposite sex interact – from the office to the dinner table to the bedroom – and how those interactions have evolved in the age of feminism. His new book is called “The Unmade Bed: The Messy Truth About Men and Women in the 21st Century” (Simon & Schuster).