Joined @SenBobCasey, 20+ Sens in support of positive train control tech that could prevent future derailments #Amtrak http://1.usa.gov/1BeJv3A
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Joined @SenBobCasey, 20+ Sens in support of positive train control tech that could prevent future derailments #Amtrak http://1.usa.gov/1BeJv3A
