SAO PAULO, BRAZIL - May 24:  Brazilian policemen stand guard as demonstrators take part in a protest against the World Cup in central Sao Paulo, Brazil on May 24, 2014. Demonstartors protested against money spent on the preparations for the upcoming World Cup which is set to begin in Brazil in less than three weeks, and demanded a general strike on the opening day of the World Cup on June 12, 2014. (Photo by Ben Tavener/Anadolu Agency/Getty Images)