PBSNewsHour | 09 August 2010 http://to.pbs.org/a3FH9g With the Senate at home for the summer, a clean-energy and climate-change bill appears to be all but dead. For a closer look at what pulled the plug on the legislation, Margaret Warner is joined by environmental writers Darren Samuelsohn of Politico and Eric Pooley of Bloomberg Businessweek magazine.