Even if it contains a grain of truth, sometimes it's best not to say it at a press affair ...
One factor through Chinese history has been risk of unrest.
Jackie Chan Says Chinese Need Control - NYTimes.com:
"It’s not unusual for actors to stumble when they talk about politics, but Jackie Chan, below, has struck a nerve on a particularly divisive issue. In the southern Chinese province of Hainan on Saturday Mr. Chan, the action star, told a group of business leaders, “I’m not sure if it’s good to have freedom or not,” The Associated Press reported. He also said: “I’m gradually beginning to feel that we Chinese need to be controlled. If we’re not being controlled, we’ll just do what we want.”"