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Moreover, supplies of the metal are far from abundant, and are located in countries not necessarily friendly to America: the biggest reserves are in Bolivia, China and Russia.

Yeah, it's a good thing countries with all the oil for our gas-powered cars are so friendly.




Canada, Saudi Arabia and Mexico are unfriendly?

The only unfriendly countries which supply a significant amount of oil to the US are Venezuela and Russia.

http://www.eia.doe.gov/pub/oil_gas/petroleum/data_publicatio...


That's actually in relation to Lithium, nothing to do with flywheels per-se.




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