Bloomberg: Ford Heights Ethanol LLC applied in June 2006 to build a distillery in the Illinois town that bears its name, promising economic revival to replace abandoned houses and closed stores. Two years later, no work has begun. For Ford Heights and other agricultural towns, the “green- collar” job revolution envisioned by federal biofuel mandates is a dream deferred. Knee-high grass and old tires cover the site as record prices for corn, the main ingredient in ethanol, discourage investment …