Think Again: Revisiting why we love to curse so #&%@$!+ much

John McWhorter is a linguist who spends his time thinking about words, what they mean, why we use them and how they’ve evolved — and that includes profanity. He joins Think to talk about his most recent book, “Nine Nasty Words: English in the Gutter: Then, Now, and Forever.” Just a warning: there’s uncensored profanity in this language, so it might not be appropriate for younger listeners.