International Olympic Committee (IOC) President Jacques Rogge laughs during a news conference in Buenos Aires, capital of Argentina, Sept. 4, 2013. IOC will elect the host city of the 2020 Summer Olympic Games and a new IOC president at its 125th session, to be held on Sept. 6. (Xinhua/Martin Zabala)
International Olympic Committee (IOC) President Jacques Rogge speaks during a news conference in Buenos Aires, capital of Argentina, Sept. 4, 2013. IOC will elect the host city of the 2020 Summer Olympic Games and a new IOC president at its 125th session, to be held on Sept. 6. (Xinhua/Martin Zabala)
International Olympic Committee (IOC) President Jacques Rogge speaks during a news conference in Buenos Aires, capital of Argentina, Sept. 4, 2013. IOC will elect the host city of the 2020 Summer Olympic Games and a new IOC president at its 125th session, to be held on Sept. 6. (Xinhua/Martin Zabala)
International Olympic Committee (IOC) President Jacques Rogge speaks during a news conference in Buenos Aires, capital of Argentina, Sept. 4, 2013. IOC will elect the host city of the 2020 Summer Olympic Games and a new IOC president at its 125th session, to be held on Sept. 6. (Xinhua/Martin Zabala)