"The Government always wants to try to act as the cat to control people's access to information but I think the mouse is running faster." This is the voice of Isaac Mao, he was one of China's earliest bloggers, and has learnt how to work the system. "The Chinese government's goal is not to control one hundred percent of what people are doing one hundred percent of the time," if they are too authoritarian, they will be faced with civil unrest. As CNN correspondent Rebecca MacKinnon points out, "to remain in power they want to prevent certain uses of the internet that might lead to overthrow." Journalists like Zhang Shihe work the gaps in the censorship to broadcast their message, " I rely on my instinct. Am I telling the truth or lies? Am I trying to help improve the situation? I know if I can control this, I'll be fine." He regularly films and comments on rural working conditions, and has as yet avoided jail. But his story is not typical. With about 30 known journalists and 50 internet users known to be behind bars, the Committee to Protect Journalists has branded China "the world's leading jailer of journalists."