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The windshield of the train may have been hit by something before the crash.  The area of interest is the circular mark on the right side of the windshield.
The windshield of the train may have been hit by something before the crash.  The area of interest is the circular mark on the right side of the windshield.

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    Amtrak ordered to beef up technology

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Amtrak ordered to beef up technology

After the recent train crash, Amtrak has been ordered by the federal government to make changes to its technology. CNN's Poppy Harlow reports.

Amtrak ordered to beef up technology

After the recent train crash, Amtrak has been ordered by the federal government to make changes to its technology. CNN's Poppy Harlow reports.