The Governor of New York, Andrew Cuomo, has told CNN that the site where the North-West train derailed was "a dangerous area on the track just by design".
The trains are going about 70 miles per hour coming down the straight part of the track. They slow to about 30 miles per hour to make that sharp curve ... where the Hudson River meets the Harlem River and that is a difficult area of the track.
More top news
Teenagers across Wales, Northern Ireland and England are to get their results, with much of the focus on the effect of reforms in England.
Sunshine and showers for tomorrow
Addressing veterans at an American Legion conference in Reno, Nevada, the president spoke in measured tones and stuck to prepared remarks.