Now Playing: 01-14-13 Marketplace

President Barack Obama gave Republicans an ultimatum: pay America's bills and raise the debt ceiling or risk putting the U.S. through another crisis. Walmart, the world's largest retailer, is gearing up to make a big adjustment to its business model -- it's getting ready to open the smallest Walmart store in the country. Matt Parker and Trey Stone, the creators of "South Park," say they're taking some of the profits from their Broadway success, "The Book of Mormon" and opening up their own production studio. Plus, stories about flu shot shortages, how cars destroyed by Sandy are getting a second (suspicious) life, and a chat about Chicken McNuggets.