Arun Venugopal guest hosts!
Jacob Silverman discusses the detrimental impact that social networking is having on our lives. Chef and restaurateur Pierre Thiam talks about his latest cookbook that brings traditional Senegalese recipes into the 21st century. Actors Lily Rabe and Michael Stuhlbarg speak about their film "Pawn Sacrifice," based on the true story of American chess prodigy Bobby Fischer. And journalist M.R. O'Connor explores the scientists who are on quests to save unique animals from extinction.