Tank-car safety woes date decades before crude

WASHINGTON — Long before crude oil and ethanol were transported by railroads in large quantities in minimally reinforced tank cars, other flammable and poisonous materials were riding around the country in the same cars, threatening major cities and waterways.

Federal regulators might be weeks away from issuing new safety guidelines for tank cars carrying flammable liquids, after a series of frightening rail accidents over the past six months.

Read the complete story at the Miami Herald.