Huffington Post: Sitting on President Obama's desk is a decision memorandum on whether or not to approve the Keystone pipeline, which would take tar sands oil from Canada to refineries in the Gulf of Mexico.
It is a controversial decision -- many have highlighted the terrible effects of digging up and burning tar sands oil. But these concerns are countered by those who argue the project would enhance North American energy independence, and create American jobs.
The political calculus is easy to explain: Yes,...