http://www.nbcnews.com/news/investig...t-built-n59026
This is a pretty interesting article.
President Obama needs to decide whether he is going to allow the oil to be brought into and used in The United States, or sold to other Countrys such as China.
The Sierra Club is being a little naive. The Canadians are not going to just let all of that money stay in the ground. They will sell it to somebody, whether it is transported by pipeline, rail, or ship.
It would seem they would want it to stay in The USA, where we have much more stringent environmental laws, rather than go overseas.
But regardless, the crude will be sold to someone.