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Magnetically levitated trains use electricity to replace the fuel, and also use electricity to replace the wheels.

That electricity has to be generated somewhere.

well of course, but America can produce its own electricity and not rely on OPEC which artificially keeps the price of oil high.

It remains to be seen, but these trains have another advantage in that there are no wheels which means no friction. Less energy means less cost to move the train which means more fuel-efficient.
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