Huffington Post: In its recently released draft environmental review of the Keystone XL pipeline that would bring tar sands from Canada to the Gulf Coast for export, the State Department attempts to make the case that rail could be a viable alternative. The State Department argued that Keystone XL would have little effect on tar sands production because rail could provide an equally feasible and economic transportation option for tar sands. This is a critical element of the draft environmental review because while...