In part two of this series from the Second Avenue Deli, TBTL's Luke Burbank eats chopped liver for the first time. Along with Mike Pesca (NPR sports correspondent and co-host of the Slate podcast Hang Up and Listen) and Win Rosenfeld (Current TV contributor and The Sporkful's beloved wacky neighbor) this leads us into a conversation about whether some parts of an animal are better (or worse) to eat than