Wall Street Journal: The Environmental Protection Agency said Wednesday that it expects the biofuels industry to produce 6.5 million gallons of cellulosic ethanol this year, a fraction of the volume anticipated by Congress. The announcement suggests that government goals for turning inedible crops into transportation fuel have been unrealistic and too optimistic about the private sector’s ability to advance existing technology and finance new refineries for biofuels. In 2007, Congress had mandated …