Keystone XL was planned for the express purpose of transporting more heavy oil from the oil sands to the U.S. Knowing this, the environmentalists were all over it from day one. I have heard Biden speak about 'bitumen' almost spitting the word out. He and Obama bought into what the anti-oilsands campaign was saying ... that 'demon' bitumen product! The silly thing is, those refineries in the Gulf want and need the heavy oil otherwise they have to source it from somewhere else. In other words, with or without Keystone XL ... the same volume of heavy oil is going to be sourced and consumed, and the environment will be no better off ... it just won't be Canadian heavy oil.
If this was a multi-purpose pipeline, it may have stood more of a chance of getting built. I do agree though. Let's move on. Stop flogging a dead horse! Nothing is going to change with it until the U.S decides they can't meet their own energy demand.