BNSF Railway says it didn't know about asbestos that's killed hundreds in Montana town

BNSF Railway attorneys are expected to argue before jurors that the railroad should not be held liable for the lung cancer deaths of two former residents of an asbestos-contaminated Montana town. Closing arguments are scheduled Friday in a civil lawsuit against the railroad. The town of Libby, Montana, is among the deadliest sites in the federal Superfund pollution program. The asbestos came from a nearby vermiculite mine that used BNSF to ship its product across the U.S. The estates of the deceased plaintiffs say dust from a rail yard sickened and killed them. Attorneys for the Warren Buffett-owned railroad say it was not told the vermiculite was dangerous by mine owner W.R. Grace & Co.