JZ sez, "The OpenNet Initiative, a joint effort of U. Toronto's Citizen Lab and Harvard's Berkman Center, tracks Internet filtering by governments around the world. We published a book detailing such filtering in 2008 called Access Denied, and the sequel is about to come out, called Access Controlled.
ONI colleagues Ron Deibert and Rafal Rohozinksi were at the Internet Governance Forum today in Egypt, where they hosted a reception about Access Controlled. It featured a poster describing the book. The poster contained the following sentence:
The first generation of Internet controls consisted largely of building firewalls at key Internet gateways; China's famous 'Great Firewall of China' is one of the first national Internet filtering systems.
That was apparently enough to trigger concerns on behalf of the Chinese government, and UN-liveried security guards knocked over the poster and then later removed it."