The fire appears to be crude oil. Earth First and other environmental wackos has been known to sabotage industries that they consider unclean or environmentally bad.
I look forward to the results of the investigation.
So do I.
This is the third train derailment involving crude oil within the last 6 months that occured near city centers.
July 6, 2013: Train Carrying Oil Derails and Explodes.
October 19, 2013: Fire rages after another train derails in Canada.
December 30, 2013: Train Derailment West of Casselton [ North Dakota ]
Three explosive derailments within 6 months, when there have been none in the years prior? That's a pattern.
-PJ