Nem os sindicatos do PT nem os usineiros do PFL gostam de falar no assunto:

The Guardian (leia o resto da matéria). Brazil's ethanol slaves: 200,000 migrant sugar cutters who prop up renewable energy boom Tom Phillips in Palmares Paulista Friday March 9, 2007 "...Activists go even further. They say the "cortadores" are effectively slaves and complain that Brazil's ethanol industry is, in fact, a shadowy world of middle men and human rights abuses..."