Keystone XL Pipeline: Jobs versus the Environment

A proposed oil pipeline from Canada south to the Gulf Coast of Texas has divided interest groups in both political parties and raised a host of the issues crucial to next year's elections. We update the controversy over the XL pipeline. Also, powerful unions jump aboard the "Occupy Wall Street" movement, and forget the "Big Crunch." This year's Nobel Prize goes to physicists who discovered the "Dark Energy" that's causing the universe to expand.

Banner image: American actress Daryl Hannah (C) sits in front of the White House in Washington, DC, August 30, 2011, during a protest against the construction of the Keystone XL pipeline. Photo by Saul Loeb/AFP/Getty Images