There is a lot more to the alternative fuels than you get from the media. there is a big push for them for enviromental reasons and foriegn oil , the other reasons are mostly a load of crap. They are not cheaper, easier, or better. For the most part they are not even as good and they have a lot of unique problems. It takes more energy to process corn to get a fuel product out of it than than you end up with, that is a step backwards. The veggie oil/diesel thing works ok but on a very small scale, and I wouldn't run it in a aircraft I'm going to fly.