As long as viable energy sources that make sense - nuclear, coal, and petroleum - are relegated to the control of USA global warming bogeymen believers and anti-capitalists, the price manipulation of segments of the energy price structures are easier for those speculators who wish to cash in. Investments in alternatives - including solar and wind and especially ethanol - will not add enough energy to the mix to prevent this in the foreseeable future.
In other words, unless we produce more energy that is cost efficient HERE, we rely on other countries and OPEC. Such reliance has prove to be a foolish path in the past. The current administration appears to demonize coal and appears unwilling to allow drilling for oil where vast supplies exist or build nuke plants. GM, Ford, & Chrysler may be required to place large cloth sails on the top of their new fuel efficient land schooners soon, though. HD is considering rubber band technology according to unfounded internet rumors. Bike will self wind but power output is not even.... across the band.