PARIS - SEPTEMBER 22: French actor Christophe Heraut plays Ben-Hur and rides in a Roman chariot during the stage production premiere of 'Ben-Hur' September 22, 2006 in Saint-Denis, Paris, France. After Charlton Heston played the lead in this sword and sandal epic, written by Civil War Union Gen. Lew Wallace, on the big screen, the play is set to return in a live version staged at France's biggest sports stadium. Behind the 13-million-euro (16.5-million-dollar) show is a veteran Paris-born director Robert Hossein, who involved a large crew of hundreds of actors for the show. (Photo by Francois Durand/Getty Images)

Dead fish are pictured on the banks of the Guanabara Bay in Rio de Janeiro February 24, 2015. International Olympic Committee members meeting in Rio de Janeiro this week will understand if its waters are not completely clean for the sailing events in 2016, the state's governor said on Monday. (Photo by Ricardo Moraes/Reuters)