Anthony Swift at the Natural Resources Defense Council pointed to the release today of a report [ http://www.nrdc.org/energy/kxlsecurity.asp ] from the organization claiming that the proposed Keystone XL tar sands pipeline "would undermine U.S. energy security and increase the price of Canadian crude. Canada doesn’t produce enough crude to fill the pipelines it already has. In fact, crude export pipelines to the United States are currently running half empty. That means that another pipeline isn’t going to bring more oil into the United States – it’s just going to take the oil that was already coming to a different place. "