“They think we’re stupid, because we live in a slum!” says Pawer Martins. A musician and activist, Martins is furious. He lives in Vila da Barca, a socially disadvantaged neighborhood on the shores of the Baia do Gaujara estuary, just south of…

“They think we’re stupid, because we live in a slum!” says Pawer Martins. A musician and activist, Martins is furious. He lives in Vila da Barca, a socially disadvantaged neighborhood on the shores of the Baia do Gaujara estuary, just south of…