COPENHAGEN, DENMARK - OCTOBER 02:  US Olympic Committee Chairman Larry Probst addresses the IOC members during the Chicago 2016 presentation on October 2, 2009 at the Bella Centre in Copenhagen, Denmark. The 121st session of the International Olympic Committee (IOC) will vote on October 2 on whether Chicago, Tokyo, Rio de Janeiro or Madrid will host the 2016 Olympic Games. Getty Images logo Getty Images 2 months ago

COPENHAGEN, DENMARK - OCTOBER 02: US Olympic Committee Chairman Larry Probst addresses the IOC members during the Chicago 2016 presentation on October 2, 2009 at the Bella Centre in Copenhagen, Denmark. The 121st session of the International Olympic Committee (IOC) will vote on October 2 on whether Chicago, Tokyo, Rio de Janeiro or Madrid will host the 2016 Olympic Games.