Opinion, by Alfonso Stefanini
RIO DE JANEIRO, BRAZIL - A "lingua negra" or black tongue is a common terminology used by Cariocas when they talk about the mysterious untreated flow of raw sewage that slowly and congruently slips into the oceans, sometimes making its way through some of the most popular beaches in Rio.
The untreated water comes from illegal connections throughout the city, coming from all socioeconomic neighborhoods in Rio. Not even the American Consulate was free from this problem as . . .