15. You Say Repugnant, I Say … Let's Do It!

16. Exit Interview: Schools Chancellor, NYC

17. Trashed

18. Freakonomics FAQ, No. 1

19. Waiter, There’s a Physicist in My Soup! (Part 1)

Pick of the Week: It’s Your Problem Now (Ep. 318)

Who Decides How Much a Life Is Worth? (Ep. 344)

Pick of the Week: Time to Take Back the Toilet (Ep. 190)

Pick of the Week: Are We in a Mattress-Store Bubble? (Ep. 251)

How to Be Happy (Ep. 345)