The top producer of Top Chef helps us spice up this food edition of listener questions. How do you master the salad bar? Why do Americans refrigerate eggs? The story of Choco Pies and more. | Subscribe to our weekly newsletter here.
Helium is so special, and so rare, that the U.S. government once tried to buy it all up. And hide it. But the government's helium stockpile is running low. And we need it for MRI machines and NASA rockets.