Natural gas for auto industry as cleaner option tax shelter The cleaner fuel option offered by Westport should be in te center of the USA political campaign to offer much more tax shelter, tax free, network with clne.otcbb sponsored for one or to 2 decades to come. The switch for cleaner energy not easy, not profitable at first. Then all smallcap venture specialise in natural gas could survive,built own pipeline etc. Who to vote Republican best ?