Police officers stand guard at a building during a protest in central Rio de Janeiro June 27, 2013. Tens of thousands of Brazilians have taken to the streets this month in the biggest protests in 20 years, fuelled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. REUTERS/Pilar Olivares(BRAZIL - Tags: CIVIL UNREST POLITICS SPORT)
RM2CWM4DFPolice officers stand guard at a building during a protest in central Rio de Janeiro June 27, 2013. Tens of thousands of Brazilians have taken to the streets this month in the biggest protests in 20 years, fuelled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. REUTERS/Pilar Olivares(BRAZIL - Tags: CIVIL UNREST POLITICS SPORT)
Rio de Janeiro, Brazil  20th June 2013. The ´Batalhão de Choque´, Riot Control Police´ open fire with rubber bullets beneath the Arcos da Lapa aqueduct  in Lapa, during  protests in Rio de Janeiro, Brazil  20th June 2013 Credit:  Peter M. Wilson/Alamy Live News
RMD9KN1RRio de Janeiro, Brazil 20th June 2013. The ´Batalhão de Choque´, Riot Control Police´ open fire with rubber bullets beneath the Arcos da Lapa aqueduct in Lapa, during protests in Rio de Janeiro, Brazil 20th June 2013 Credit: Peter M. Wilson/Alamy Live News
Riot police officers patrol near a fire at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia.     REUTERS/Pilar Olivares (BRAZIL - Tags: CIVIL UNREST POLITICS ANNIVERSARY)
RM2CWY15NRiot police officers patrol near a fire at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia. REUTERS/Pilar Olivares (BRAZIL - Tags: CIVIL UNREST POLITICS ANNIVERSARY)
Brazlian writer Paulo Lins gives an interview in Rio de Janeiro, Brazil, 02 July 2013. Lins sees built-up anger and dissatisfaction as the main causes for the countrywide protests in Brazil. Photo: HELMUT REUTER
RMDA51EEBrazlian writer Paulo Lins gives an interview in Rio de Janeiro, Brazil, 02 July 2013. Lins sees built-up anger and dissatisfaction as the main causes for the countrywide protests in Brazil. Photo: HELMUT REUTER
RIO DE JANEIRO, Brazil - People stage a demonstration in Rio de Janeiro on June 24, 2013. Protests triggered by transport fare hikes spread with participants showing their opposition to such issues as corruption and the amount spent on the 2014 FIFA World Cup. (Kyodo)
RMJP1C58RIO DE JANEIRO, Brazil - People stage a demonstration in Rio de Janeiro on June 24, 2013. Protests triggered by transport fare hikes spread with participants showing their opposition to such issues as corruption and the amount spent on the 2014 FIFA World Cup. (Kyodo)
2013 protests in Brazil, Rio de Janeiro downtown, June 20, 2013. 'Eu só quero amar' I just want to love'.
RMDK3M8T2013 protests in Brazil, Rio de Janeiro downtown, June 20, 2013. 'Eu só quero amar' I just want to love'.
Riot police officers patrol in an armored vehicle at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia.   REUTERS/Pilar Olivares (BRAZIL - Tags: POLITICS CIVIL UNREST ANNIVERSARY)
RM2E5WHNCRiot police officers patrol in an armored vehicle at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia. REUTERS/Pilar Olivares (BRAZIL - Tags: POLITICS CIVIL UNREST ANNIVERSARY)
RIO DE JANEIRO, Brazil - Demonstrators wearing masks march in Rio de Janeiro, Brazil, on June 24, 2013. Protests triggered by transport fare hikes spread with participants showing their opposition to such issues as corruption and the amount spent on the 2014 FIFA World Cup. (Kyodo)
RMJP1C54RIO DE JANEIRO, Brazil - Demonstrators wearing masks march in Rio de Janeiro, Brazil, on June 24, 2013. Protests triggered by transport fare hikes spread with participants showing their opposition to such issues as corruption and the amount spent on the 2014 FIFA World Cup. (Kyodo)
Brazil 2013 protests Young people cover their faces in shame for corruption in Brazilian Government, Brazil flag and flower
RMDK3M37Brazil 2013 protests Young people cover their faces in shame for corruption in Brazilian Government, Brazil flag and flower
FIFA go home - Demonstration in Rio de Janeiro against realization of 2014 Soccer Wold Cup in Brazil, June, 30th, 2013
RMDTNA1CFIFA go home - Demonstration in Rio de Janeiro against realization of 2014 Soccer Wold Cup in Brazil, June, 30th, 2013
Riot police officers patrol in an armored vehicle at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia.    REUTERS/Pilar Olivares (BRAZIL - Tags: CIVIL UNREST POLITICS ANNIVERSARY)
RM2D0K2AWRiot police officers patrol in an armored vehicle at a demonstration during Brazil's Independence Day in Rio de Janeiro September 7, 2013. Police used teargas to contain street protests on Saturday in several Brazilian cities, stopping demonstrators from disrupting Independence Day military parades and an international soccer game between Brazil and Australia. REUTERS/Pilar Olivares (BRAZIL - Tags: CIVIL UNREST POLITICS ANNIVERSARY)
Two demonstrators kiss each other in front of police officers during a protest in central Rio de Janeiro June 27, 2013. Tens of thousands of Brazilians have taken to the streets this month in the biggest protests in 20 years, fuelled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. REUTERS/Pilar Olivares(BRAZIL - Tags: POLITICS CIVIL UNREST SPORT)
RM2CWH0N4Two demonstrators kiss each other in front of police officers during a protest in central Rio de Janeiro June 27, 2013. Tens of thousands of Brazilians have taken to the streets this month in the biggest protests in 20 years, fuelled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. REUTERS/Pilar Olivares(BRAZIL - Tags: POLITICS CIVIL UNREST SPORT)