NTSB Board Member Robert Sumwalt discusses the investigation into Tuesday's Amtrak crash north of Philadelphia. The train was traveling at 106MPH -- twice the posted speed limit -- according to the NTSB.May 14, 2015
UP NEXT
Time for both sides to stand down, says House member of Israel and Iran
04:19
Joe: When it comes to polls, focus on the trend lines
04:17
Why overwork leads to workplace inequality
07:08
'I wanted him to know who Jim was': Mom of journalist killed by ISIS on talking to his killer
06:30
Why Mike Johnson is sounding like a 'Republican from the before times'
05:43
Is Trump the frontrunner in the general election? Not so fast