NEW YORK — "Something is very wrong with the way American women are trying to live their lives," the late Betty Friedan wrote in "The Feminine Mystique," her groundbreaking 1963 book attacking the idea that a husband and children were all a woman needed for fulfillment. That book effectively launched the modern women's movement. But more than four decades later, writer Leslie Bennetts is trying to sound a very similar message. In "The Feminine Mistake" — the title's no accident — she argues that many young mothers have forgotten Friedan's message, embracing a 21st-century version of the 1950s stay-at-home ideal...