U.S. electric-car company using foreign parts?

Tesla Motors became the focus of a federal probe into whether the automaker was using foreign instead of American parts in manufacturing their electric vehicles.

**FILE** A Tesla Model S is seen outside the Tesla factory in Fremont, Calif., on June 22, 2012. (Associated Press)

**FILE** A Tesla Model S is seen outside the Tesla factory in Fremont, Calif., on June 22, 2012. (Associated Press)

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