How does it affect a child's mental and emotional health if his biological parents are not married, but simply live together? What about the child whose single mom or dad lives together with a romantic partner? "The research to date," says sociologist Brad Wilcox, "suggests that marriage provides more security, more stability and better outcomes for our kids." On today's broadcast, Wilcox and family formation expert Glenn Stanton recount what the latest studies reveal about the effects of cohabitation on children and society. Listen in as our guests explain how kids benefit the most when they live with their married mother and father.