I voted all of the above so the last two would be covered. In all the technology did pan out but was not pushed by the gov't nor purchased in great quantities by us. Mainly because of the price, but I believe with the technology advancements of late we could produce this in a much more cost effective manner. It is because it is such a cheap energy source the power companies do not want us to have it. Just like windmill energy, people don't want to see a windmill in their neighborhood. These are the people that should get a life and realize we need to conserve all our resourses because if we don't noone will have coal, oil or enough nuclear energy to go around.