Transportation Secretary Pete Buttigieg shifted part of the blame for the recent derailment of a train carrying toxic chemicals in Ohio on the Trump administration reversing a little-known safety rule. Buttigieg noted Tuesday evening that his agency had taken a series of steps to improve rail safety through "historic investments," but said it was constrained by the Trump administration action. In 2018, the Department of Transportation (DOT) withdrew a rule proposed three years earlier requiring trains carrying certain dangerous chemicals to utilize electronically controlled pneumatic (ECP) brakes, saying the technology's benefits were inconclusive.