The head of a rail safety group compared a widely used train tank car to the recalled Ford Pinto in urging U.S. regulators to require upgrades that would prevent accidents like a Quebec derailment that killed 47 people.

Karen Darch, the co-chairman of a coalition of communities around Chicago formed in response to a merger of railroads, said regulators dragged their feet in mandating safety improvements to the car, known as the DOT-111, amid evidence showing the tankers are more prone to rupture in a derailment than other types.

Read the complete story at the Worcester Telegram & Gazette.