We hear from New York City school teachers about a secret room in the New York City Board of Education building. Teachers are told to report there, and when they arrive, they find out they're under investigation for something.

Margaret Dunbar Cutright starts looking into her grandfather's disappearance.

Host Ira Glass spends time in perhaps the toughest room on earth, the editorial meeting at the satirical newspaper, The Onion, where there's one laugh for every 100 jokes.

Three guys who go by the names Professor So and So, Jojobean and YeaWhatever spend part of each day running elaborate cons on Internet scammers. They consider themselves enforcers of justice, even after they send a man 1400 miles from home, to the least safe place they can bait him: The border of Darfur.

A tale of two Santas. There's Tim Conaghan, a full-time professional Santa with a big belly and a real flowing white beard.

Measles cases are higher in the U.S. than they've been in a decade, mostly because more and more nervous parents are refusing to vaccinate their kids. Contributing Editor Susan Burton tells the story of what happened recently in San Diego, when an unvaccinated 7-year-old boy returned home from a trip to Switzerland, bringing with him the measles.

Paul Tough reports on the Harlem Children's Zone, and its CEO and president, Geoffrey Canada. Among the project's many facets is Baby College, an 8-week program where young parents and parents-to-be learn how to help their children get the education they need to be successful.

Alex and Adam's story continues.