Amtrak train speeding at 80 mph before derailing

Amtrak train speeding at 80 mph before derailing
Careening around a curve at almost three times the speed limit, an Amtrak train derailed and hurled passenger cars off an overpass -- and onto rush hour traffic below. The Amtrak Cascades 501 train was carrying 86 people on its first journey on a new route from Seattle to Portland when it derailed Monday. The high-speed catastrophe killed three people and hurt more than 100. It's not clear why the train was traveling at 80 mph in a 30-mph zone, said National Transportation Safety Board member T. Bella Dinh-Zarr. But this much we do know: The track had undergone millions of dollars of improvements and weeks of testing.