James Griffiths is a Senior Producer for CNN International and author of " The Great Firewall of China: How to Build and Control an Alternative Version of the Internet ." 2009 was the biggest test the architects of the Great Firewall had faced at the time, and they responded with a blistering assault that shocked even their critics. While China has built the world's most sophisticated top-down censorship apparatus in the Great Firewall, this is mainly aimed at information originating overseas. Most of the day-to-day control is in the hands of censors working for the nominally private companies which dominate the Chinese web. It will present perhaps the last great challenge to the censors who have managed to almost erase the incident from Chinese popular consciousness.

Source: CNN January 04, 2019 05:14 UTC