What no one seems to comprehend about any pipeline is their safety. The only major 'moving part' of a pipeline is whatever you pump through it! Whereas a railroad with hundreds of trains pulling thousands of tank cars over hundreds of thousands of miles of track spiked to wooden ties, has millions of moving parts from the roof of the locomotives down to the gravel in the roadbeds. Statistics show volume of spillage from pipelines is miniscule compared to the numerous spills, fires and exploding tank cars from, track separations other incidents that we experience every year; and I'm not even taking into account the human operating factors.