Demonstrators who have been staging a protest in Madrid's Puerta del Sol since May 15, protest against collective bargaining reforms in front of Spain's labour ministry in Madrid June 10, 2011. Spain's government will set out collective bargaining reforms on Friday that have already been criticised by businesses who say they are not flexible enough and economists who say they do not de-link pay from inflation. Dubbed "los indignados" (the indignant), tens of thousands of demonstrators have packed squares across Spain in a wave of outrage over high unemployment and government austerity measures. The placard reads "Tame people, good slaves!". REUTERS/Andrea Comas (SPAIN)