Science Focus
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Censorship of the Internet in China is a heavily studied but little-understood process, driven by both private networks and government employees and having effects that are hard to measure. To better understand it, a group of researchers tested censors and filters by attempting to post over a thousand bits of content on various social networking sites. They found that there was an aggressive pre-filtering process that holds a high number of submissions for review before they're posted—and that the results are actually undermining China's censorship mission. The filters tend to hamstring pro-government content as often as they block anti-government writing.
Part of the authors' process involved setting up a social media site of their own within China to see what standards they would be subjected to and what tools they would have to use in order to comply with the country's censorship requirements. They found that sites have an option to install automated review tools with a broad range of filter criteria. Censorship technology is decentralized, they wrote, which is a technique for "[promoting] innovation" in China.
Most research that has been done on Chinese censorship is largely based on what posts exist on the Internet at one point and then do not at a later time, indicating that they were pulled by censors. While that behavior is easily observed, there is another layer to the censorship system whereby users' posts get held for review by censors before they're made public. This new study attempted to figure out what sort of posts would get held for review, what would eventually make it through, and what might escape suspicion at either the posting or review stage, only to be removed later.
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