A train collision and derailment stops traffic on highway near Scappoose for several hours. Two train cars containing ethanol caught fire but crews managed to put it out. Paul Corah with Portland Fire says it could have been much worse, especially if it happened in the city. He says one tanker was leaking fuel into a culvert that drains into the Multnomah Channel.  The EPA, the DEQ and the Coast Guard are on-site, working to determine the environmental impact of the incident.