These days, it's routine for businesses to fail, get rescued by the government, and then continue to fail. But ethanol, which survives only because of its iron lung of subsidies and mandates, is a special case. Naturally, the industry is demanding even more government life support. Corn ethanol producers -- led by Wesley Clark, the retired general turned chairman of a new biofuels lobbying outfit called Growth Energy -- want the Obama Administration to make their guaranteed market even larger. Recall that the 2007 energy bill requires refiners to mix 36 billion gallons into the gasoline supply by 2022. The...