JoshK, you are the original guy that shoots from the hip and misses. I didn't say that it has NO merits. But regardless whether it burns somewhat cleaner, these facts remain:
-the corn and soy biofuel industry is packed with our $ that artificially reduce the price of the fuel.
-the crude oil refining industry, despite what you think, is not "subsidized" to lower consumer prices. Some of the largest companies in the world operate profitable businesses by purchasing crude oil at market prices, cracking that oil into products at refineries, and selling those products at market prices. The same cannot be said for the bio-fuel industry.
-the diesel industry is using bio-diesel as a way to offset negative pr about pollution from diesel engines.
-the vast majority of the articles found on the internet touting soy biodiesel are put up by organizations with a financial stake in its success.
My point is simple: While creating bio-diesel from by-products like human or livestock waste, or waste cooking oil, etc. makes sense, it does not intuitively make sense to subsidize a new industry into existence with tax dollars, when farmed acres in the US are decreasing and population is growing. We need to use farmland for food, not to delude ourselves that we are doing good with a costly pr gimmick.