Over half of all births to young adults in the United States now occur outside of marriage, and many of those are unplanned. Too often, the result is increased poverty for many children. Some argue for a return to traditional marriage. Others say we need more social support for unmarried parents. Family policy expert Isabel Sawhill offers a third option which involves what she calls childbearing by design, not by default. Diane and her guests discuss the impact of family structure on child well-being.Guests: Bradford Wilcox, director, the National Marriage Project at the University of Virginia...