Well the obvious is you need a pipeline, to transport via pipeline - and that can take decades to put in place, and sometime is politically challenging as we've

Well the obvious is you need a pipeline, to transport via pipeline - and that can take decades to put in place, and sometime is politically challenging as we've seen with Keystone XL. There are already railways that go everywhere. Next - right now, you need special tanker cards to transport oil via rail - and latency on those can be on the order of years if you want to scale up. What's neat about this invention, is that it can transport oil in a form that, if I read correctly, isn't as catastrophic when spilled as an oil tanker would be, and, also importantly, can use rail cars that were designed for something else (the author cites Coal) - so no need to wait a few years (and spend $$$) for special tanker cars - there are a zillion idle coal cars right now. This article captures part of the significant economic incentive as well: http://business.financialpost.com/commodities/energy/demand-for-tank-cars-to-ship-crude-oil-by-rail-rises-at-breakneck-speed http://business.financialpost.com/commodities/energy/demand-...