◼ Revealed: Amtrak train accelerated from 70 to 106mph in seconds before crash and speed control system that could have prevented deadly derailment WAS installed but not turned on - WILLS ROBINSON FOR DAILYMAIL.COM
- NTSB said the commuter service was travelling at twice the speed limit
- Engineer Brandon Bostian hit the emergency brakes - but it was too late
- Train came off tracks - killing eight people and injuring more than 200
- Has been claimed 'Positive Train Control' was in place on stretch of track
- The system - used to slow the train down - was not turned on at the time
- There have been installation delays because of problems with radios