One issue that I see quickly evolving is that of an eclectic national alternative fuel market. Until now we have enjoyed the luxury of only two real fuel options for transportation, which has made thing simple for consumers. However, we may now face as many as a dozen options before this all sorts itself out. When one considers distribution costs in both energy and dollars - the overall system efficiency - does it makes sense to allow the market to sort out our best options, or would it make more sense to set national standards to drive the market to a calculated position? Presently we see ethanol taking a lead, but we could just as easily switch the focus to biodiesel options, which I believe is a more [much more?] efficient well-to-wheels option. At the same time, natural gas powered hybrids, and everything from gasoline powered to H2 powered fuel cells are being developed. In many cases, in addition to and as a consequence of the local natural resources that can be used to produce fuel - corn, wood, sugar beets or cane, waste products from humans and animals, coal, algae...and maybe even grasses - large industrial operations will also be able to produce any of several possible fuels as a byproduct of existing processes. So we might expect local pockets rich in one of hydrogen, methane, ethanol, or other bio-fuels, but possibly with only one or two abundant in most areas. How to best apply each of these resources: As part of a national strategy, or as individual enterprises to be left to market forces? Will a natural, uniform market evolve in which, for example, a car from Long Beach California will be able to find the needed fuel in Portland, Oregon, or, if left to market forces, will we find ourselves constrained to stay within the geographic limits of local fuel options? The latter would certainly impede the change to domestic energy sources. On the other hand, at this point we don’t really know which fuel options will be most practical; so at what point should we intervene with a national plan, if ever? And can we trust politicians to sort this out better than market forces could?