Two U.S. senators raise 'significant concerns' with Tesla driving systems

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TESLA MTRS (NASDAQ: TSLA) Delayed: 327.51 --0 (-0%)
Previous Close $327.51    52 Week High $269.32 
Open $327.51    52 Week Low $141.05 
Day High $327.51    P/E N/A 
Day Low $327.51    EPS $-0.62 
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