More Copenhagen previews and the stolen e-mail controversy: Dr. Michael Mann joins Juliet Eilperin from the Washington Post, and Carroll Doherty from the Pew Research Center for People and the Press to discuss the upcoming climate summit, recent public opinion polls on climate change, and the release of climate scientists’ e-mail conversations. CNN’s Campbell Brown: Brooke Baldwin talks to Dr. Michael Mann and others about controversial stolen e-mails.