Americans are dying for oil overseas. So why not buy more oil from a friendly supplier like Canada? The Keystone pipeline transports oil from Alberta to refineries in Illinois and Oklahoma. An extension pipeline, Keystone XL, would extend the system to refineries in Texas. But green groups have formed an unlikely alliance with conservative Nebraska ranchers and state politicians to oppose the pipeline on environmental grounds, and the Obama administration has given in to their demands. Obama has delayed a decision on the Keystone pipeline until 2013, well after next year's presidential elections. What will Obama's labor supporters say about the loss of 20,000 shovel-ready jobs? If the US won't buy Alberta's oil, Canada can always sell to the energy-hungry Chinese. In the meantime, American soldiers will have to live with a little less energy security.