Minc-Chevron oil spill

Rio de Janeiro's state environment secretary Carlos Minc speaks to journalists about the oil spill on Chevron Frade field during a press conference with foreign media correspondents, Rio de Janeiro, Brazil, November 23, 2011. (Austral Foto/Renzo Gostoli)

Rio de Janeiro's state environment secretary Carlos Minc speaks to journalists about the oil spill on Chevron Frade field during a press conference with foreign media correspondents, Rio de Janeiro, Brazil, November 23, 2011. (Austral Foto/Renzo Gostoli)

Rio de Janeiro's state environment secretary Carlos Minc speaks to journalists about the oil spill on Chevron Frade field during a press conference with foreign media correspondents, Rio de Janeiro, Brazil, November 23, 2011. (Austral Foto/Renzo Gostoli)

Rio de Janeiro's state environment secretary Carlos Minc speaks to journalists about the oil spill on Chevron Frade field during a press conference with foreign media correspondents, Rio de Janeiro, Brazil, November 23, 2011. (Austral Foto/Renzo Gostoli)