Rio de Janeiro Military Police helicopter hovers over the Alemão favela complex in an operation carried out in 2010 (Vladimir Platonov/ABr)

Rio de Janeiro Military Police helicopter hovers over the Alemão favela complex in an operation carried out in 2010 (Vladimir Platonov/ABr)

Rio de Janeiro Military Police helicopter hovers over the Alemão favela complex in an
operation carried out in 2010 (Vladimir Platonov/ABr)