At a school in Rio’s slums, kids surf in toxic waters
RIO DE JANEIRO — Eric Marques walks down a steep labyrinth of dark alleyways on this hillside slum long controlled by drug gangs and off-limits to outsiders. The scrawny 13-year-old with sun-streaked blond hair dodges fast-moving motorcycles in busy, narrow streets lined with mazes of tangled electrical wire, chicken coops and fish stands until he