Look at safety records, and tell me how trains are safer than pipelines.
Especially a newly constructed (and well scrutinized) pipeline.
Not so long ago, the Left was having cartwheeling conniptions over rail accidents involving oil tank cars.
The tar sands bitumen (with properties similar to Venezuelan crude) gets blended with lighter oil to get it to move better through pipelines. That will be interesting to stuff in rail cars and, even though the climate where it is headed is warmer, to et it out again.