Peter Sagal is best known as the host of NPR’s weekly quiz show, Wait, Wait Don’t Tell Me, which marked its 20th anniversary in October. But he’s also an avid runner, a columnist for Runner’s World magazine and the author of the new memoir, The Incomplete Book of Running. And he fashions himself an amateur Constitutional scholar, especially after hosting the PBS documentary series, Constitution USA. On this special episode of our Numbers Geek podcast, the multifaceted media personality talks with us about the role of numbers in his life and the issues he cares about, from marathon times to the U.S. Constitution. And of course, we couldn't have the "Wait, Wait, Don't Tell Me" host on a podcast without giving him a quiz of our own, which you can hear in the final segment.

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