Reuters: Surging demand for trucks and SUVs fueled by cheap gasoline is holding back improvements in U.S. fuel economy and greenhouse gas emissions, a government report due out on Wednesday is expected to show. The disconnect between consumer demand for larger, less efficient vehicles and the Obama administrations climate goals sets up a clash between the auto industry and federal regulators. Mark Rosekind, who heads the National Highway Traffic Safety Administration, said in a Reuters interview last...