Flights of Fancy: USDA put a five-year extension on its "Farm to Fly" program intended to support the production of 1 billion gallons of aviation fuel by 2018. That would represent about 10 percent of total aviation fuel use. There are several baffling aspects to this initiative:

First, the rationale given by the agency is that it will help airlines meet Europe's inclusion of international aircraft in its emissions trading scheme, but President Obama signed a law protecting U.S. airlines against Europe's emissions tax on foreign aircrafts and there is no certainty that the UN will accomplish a compromise deal. Moreover, airline fuel use already has dropped by 10 percent while carrying more passengers. Second, USDA is blowing half its...