Producer Alex Blumberg with people who listen in on the invisible world on the nether reaches of the radio spectrum, mostly illegally...and what they find there.

What does it mean to talk like a real Southerner—and why a multimillion industry can't seem to figure it out. Southern expatriate Mark Schone dissects Southern accents as they're portrayed in movies and TV shows.

Nicole Graev, an assistant to the editor at a publishing house, needs to know if her job as an assistant is actually an educational career step or a waste of time. The things she's been doing as an assistant—answering phones, faxing—is entirely different than the skills she needs for the job she really wants: her boss's.

What happens to you if you stay in sales all your life? 76-year-old salesman "Diamond" Jimmy Roy has sold everything from used cars to antiques to jewelery. Independent producer Dan Collison shadowed Jimmy Roy in his native Braddock, Pennsylvania, to talk to him about the philosophy that's kept him going as a salesman for over fifty years.

In this act we hear two stories of people who stumbled upon a place where they instantly and instinctively felt more at home than in their real homes. Stephen Dubner, author of the memoir Turbulent Souls: A Catholic Son's Return to His Jewish Family, talks about an encounter with a Jewish man named Irving that changed his life.

Sarah Vowell has a theory that you can tell the entire history of the United States by standing on one street corner—specifically at Michigan Avenue and Wacker Drive in Chicago—and describing all the events that happened within eyeshot of the corner. She covers three centuries of history, from Louis Joliet to Keanu Reeves.

Gillian's story continues.