The American Presidential Election 2012: Anybody's Guess

The election of Barack Obama as President of the United States in November 2008 was an electric moment for the whole world, a shock in the course of history. The world's most powerful democracy had chosen a black man from a humble background, grandson of a Kenyan peasant who had risen to be a cook in the British Army. It was a truly amazing reaffirmation of the equal opportunity for all that is the stuff of the American dream. Shirley Williams examines the upcoming election and the players.