Keystone XL is still in the news and probably will be for months (or years) to come. Even with the most recent vote it is not over.
Canada’s tar sands: Muck and brass | The Economist How Much Will Tar Sands Oil Add to Global Warming? – Scientific American The Other Canadian Tar Sands Pipeline Quietly Snaking Into the U.S. Without a Permit Oil sands – Wikipedia, the free encyclopedia Keystone Pipeline – Wikipedia, the free encyclopedia TransCanada-Keystone-Pipeline-System-Map-2014-02-25