Today's Takeaways: Politics and Science Clash, Sausage Racers, and Pilotless Planes Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Sen. Rand Paul Enters the Race for 2016 Political Science: Where Evidence & Ideology Collide Kristen Stewart on Growing Up and Growing Strong in Hollywood The Original Sausage Racer of Milwaukee Final Arguments Delivered in Tsarnaev Trial The Pilotless Plane: The Future of Air Travel? The racing sausages run around the field during the St. Louis Cardinals and Milwaukee Brewers game at Miller Park on April 8, 2012 in Milwaukee, Wisconsin. ( Jeffrey Phelps / Getty ) Produced by PRI and WNYC