The Economist mentions an interesting new detail about China's efforts to have all personal computers sold in China come with filtering software called Green Dam Youth Escort:
An American firm, Solid Oak Software, claims Green Dam includes stolen copyrighted code from one of its products, and has launched legal action.
I hadn't heard much about this Green Dam software before. This certainly complicates things!
I wish I had more to say about the general issue of the requirement to install filterating software as a potential WTO case. The trouble is, I'm a little fuzzy on the facts and the legal claims, which makes it difficult to say much.