NTSB: No alert for train crew until just before derailment

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Transportation Secretary Pete Buttigieg, left, and Tristan Brown, deputy administrator of the Pipeline and Hazardous Materials Safety Administration, crouch down to look at part of a burned traincar, Thursday, Feb. 23, 2023, in East Palestine, Ohio, at the site of a Norfolk Southern train derailment. (Allie Vugrincic/The Vindicator via AP, Pool)