Submission statement: Some days ago, I submitted a similar article to this sub. I decided to submit this new article, because it contains updated information.:

>In a statement, Norfolk Southern pushed back on the claim that the derailed train was immediately put back into service.
“Immediately following the derailment, the locomotives and uninvolved leading cars were moved from the derailment site to one of our facilities,” the company wrote. “This movement did not overwrite the videos. The locomotives were held there for NTSB inspection. Following release by the NTSB days later, the locomotives were returned to normal service. Because these cameras run continuously, information not collected prior to release was overwritten in the normal course of activity.”

PS: 15 minutes before and 5 minutes after the derailment is still available.