On The Gist, Mike has a song in his heart about Star Wars: The Force Awakens. Listeners sensitive to Mike's singing should tune out around 25:40. But first, has conceal-and-carry helped armed civilians defend themselves against criminals with guns? It turns out this happens. Our guest John Lott is the president of the Crime Prevention Research Center. He's the author of More Guns, Less Crime. For the Spiel, if you like Star Wars films then you'll definitely like Star Wars: The Force Awakens. Today's sponsors: Berries. Fresh berries dipped in chocolate, starting at just $19.99, are a great last-minute gift, and double your berries for just 10 bucks. Visit berries.com, click on the microphone, and use the code GIST. Bonobos. Discover the difference an expertly crafted, better-fitting wardrobe can make. For a limited time, all new customers can get 20 percent off their first order by going to bonobos.com/gist. Join Slate Plus! Members get bonus segments, exclusive member-only podcasts, and more. Sign up for a free trial today at slate.com/gistplus.

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