trib.al – The first thing to know about the Keystone pipeline? It already exists. Here’s a breakdown of the pipeline’s various parts. (Gillian Brockell, Jhaan Elker and Kate M. Tobey/The Washington Post) There’s been a longstanding assumption in the minds of Americans that more access to oil from North America necessarily means lower gas prices. In 2008, with the “drill, baby, drill” mantra humming through national politics, Katie Couric (then at CBS) challenged vice presidential candidate Sarah Palin on the link between drilling and prices during her now-infamous interview.