Yesterday when I was posting the "new" poll regarding the Keystone XL, I opined that this issue will be decided politically. The Keystone has been studied ad nauseum and the scientific studies are complete.
Unbeknownst to me when I wrote that post yesterday, The Daily Kos was reporting the very same thing: former energy secretary has stated the obvious -- "the Keystone XL is a political decision." Duh.
The op-ed at the Kos tells me why the president won't approve the Keystone. Even the Kos cannot separate science from fantasy.