Advocates of wind, ethanol and other renewable energy resources have the upper hand in the growing battle to overhaul U.S. energy policy, according to Bruce Babcock, Department of Economics. “This Congress seems unable to make a national energy policy. The renewable fuels have an advantage in that they are part of current law, and it’s always easier to maintain current law than it is to change it.” Learn more at: http://www.desmoinesregister.com/article/20120702/BUSINESS01/307020017?s...