Besides Rio, other cities that have expressed interest in staging the 2016 Olympics include Chicago, Madrid, Prague, Rome and Tokyo. The International Olympic Committee will chose in October 2009.
"If Rio wants the Olympic Games, it really needs to make a positive impact with the Pan American Games," said Ed Hula, editor of Around the Rings, a global news organization devoted to the Olympics. "They won't have to be perfect, or the best ever, but they will have to run smoothly."To read the full story, click here.