Why can't spectators hold up banners or signs similar to "Cheer for the Olympics" when watching Olympic games?

Reporter: Why are banners or placards such as "Go China" prohibited?

Beijing Olympic Organizing Committee: The Olympic Games will be held in Beijing and we are the home field. The volunteers know that everyone writes "Go China", which is not a bad word, but audiences from more than 200 other countries write Can we all understand the text? Let me in or not? Let’s imagine how we would feel at the last Athens Olympics or the next London Olympics if someone did not let us in with the prepared banners because we did not understand Chinese.

In addition, the five Olympic rings symbolize the unity of the five continents and the fact that athletes from all over the world meet at the Olympic Games in a fair, frank and friendly spirit. The spirit of the Olympic Games is the spirit of fair and just competition. . We must make the Olympic Games transcend all ideologies. Whether it is China, Japan, the United States, or France, everyone can be like the five Olympic rings. Everyone can happily enjoy the event together and enhance mutual understanding. If a variety of banners appear on the scene, it will definitely destroy such an atmosphere, so the International Olympic Committee has insisted on formulating this rule for decades.