Coal miners blow whistles during a protest against government spending cuts in the mining sector in Madrid May 31, 2012. REUTERS/Sergio Perez (SPAIN - Tags: CIVIL UNREST POLITICS BUSINESS)
Spanish National Police officers in full riot gear struggle with a protester during a coal miners demonstration in Madrid May 31, 2012. Miners protested on Thursday against government spending cuts in the mining sector. REUTERS/Sergio Perez (SPAIN - Tags: CIVIL UNREST POLITICS BUSINESS COMMODITIES)