558. The Facts Are In: Two Parents Are Better Than One

U.S. marriage rates have plummeted. But the babies keep coming, and the U.S. now leads the world in single-parent households. In her new book "The Two-Parent Privilege," the economist Melissa Kearney says this is a huge problem, and that it’s time for liberals to face the facts. Plus: our friends at "Atlas Obscura" explore just how many parents a kid can have.