Today on The Gist, journalist Graeme Wood offers insight into the motivations of ISIS. He recently wrote “What ISIS Wants” for the Atlantic. For the Spiel, we name the lobstar of the antentwig for The Gist Episode 200. We end this show with the latest Dial-a-Song debut from They Might Be Giants, a cover of Jonathan Richman’s song “I Was Dancing in the Lesbian Bar.” Today’s sponsors: Stamps.com! Sign up for a no-risk trial and a $110 bonus offer when you visit Stamps.com and use the promo code THEGIST.