From Delmonico's to Howard Johnson's: Yale Professor Paul Freedman walks us through 10 of the most influential restaurants in American history. What can a restaurant menu tell us about society? Turns out, a lot. Our host Kara Miller finds out while researching the Los Angeles dining scene. Judy Cockerton is building villages around the country to change foster care. We take a look at why. Next stop: Mars? A look at how private companies are taking the giant leap into space.