I don't think that it's all imaginary to point to a plant in Belize as a likely target for use. Take a look at the non-food plants in Belize that are likely high enough yield for fuel, and Jatropha is a likely candidate. Why else Belize, where they'd have to worry about shipping the product rather than some vacant land in Mexico, or better yet, the U.S.? Sure, it's all conjecture, but it's not some fairytale logic that led to this as a likely source.