What do Libyan rebels, Wall Street traders, Federal Reserve bankers and anti-drilling greens have in common? Over the past year, members of Congress in both parties have variously blamed all four for the mercurial prices of oil and gas. The villain changes with the season and the ideological leanings of lawmakers in search of a scapegoat to soothe voters riled by the economic toll wreaked by expensive fuel. But as 2012 begins with President Obama and the oil industry hailing the nation's rise as a petroleum powerhouse, Washington fingers are beginning to point at the web of pipelines that ship crude between the five American refining districts and the booming Canadian oil sands. Go to story #1