Some people call them flacks. Other people call them liars. But if you're in the public eye and suddenly have an image problem, you'll call them your best friend. Learn all about them in this classic episode.

Short Stuff: Why do kangaroos hop?
13:55

Boeing's Nosedive: The 737-MAX
48:48

Selects: Thrill to the Stunning Bicameral Mind Hypothesis
50:19