PARIS, FRANCE - MAY 01:  Jean-Luc Melenchon, President of the Left Party attends the May Day demonstration on May 1, 2012 in Paris, France. The French trade unionists and the Left traditionally hold parades throughout France on May Day, otherwise known as Labour Day. This year warnings have been given of increased disruption as tension builds ahead of the French presidential elections which will hold their final round on May 6, 2012.  (Photo by Trago/Getty Images)