A House committee has endorsed a bill sponsored by Rep. Jim Sensenbrenner, R-Wis., that would block the rollout of ethanol blends above E10 until a new scientific study of their effects is done. Bob Dinneen, president and CEO of the Renewable Fuels Association, called the bill "a tribute to stubbornness." Sensenbrenner "refuses to acknowledge that E15 is a thoroughly tested and approved fuel option that gives consumers a cost-saving, environment-enhancing, domestic renewable choice at the pump. ... If he doesn't want to use it, fine, but American drivers have a right to choose," Dinneen said.