China also has Olympic problem. To have a successful 2008 Olympic Game in Beijing, U.S. and Japan have to go along with it. It is not hard to ruin the atmosphere of the Game by digging up and publicizing dirts on China which are plenty.
We have other, simpler options, should China drag their feet at the U.N. An Olympic boycott by Japan, South Korea, and the United States would be devastating. The Chinese government would be unable to cover that one up, and their people would be shamed and upset.