Now Playing: 08-16-12 Marketplace

Farmers in Colombia struggling to make money off of cacao are returning to an old standby commodity: cocaine. A popular restaurant in Los Angeles is paying its diners to turn in their phones at the door. We look into the world of "fun consultants." College students are getting their tuition refund checks, but what are they spending them on? There's an international convention for crime fighters going on in San Antonio, Texas. Kai Ryssdal talks to economist Michael McDonough about an unlikely economic indicator: trash. And our series on China's Street of Eternal Happiness continues with a look into the life of a tattoo artist making a living on Shanghai's Changle Road.