It’s a lot easier to become a house painter than almost anything else in the trades. Regulations and requirements vary widely from state-to-state. Some demand nothing more than a business license, and ...

NPR's Ari Shapiro talks with behavioral economist Cass Sunstein about his latest book, “How to Become Famous: Lost Einsteins, Forgotten Superstars, and How the Beatles Came to Be.” Why is the "Mona ...