Third blast on US oil train stirs scrutiny

New York

FOR The third time in less than a month, a train carrying flammable crude oil has derailed and burst into flames, prompting questions over whether stricter measures being considered to ensure their safety will be enough.

All three accidents involved a newer generation of tank cars that are supposed to be sturdier and safer than older models.

Those cars will be upgraded as part of a new federal standard that is …