In Foreign Affairs, Fred Bergsten confirms my suggestion that he would be unhappy with the way China decided to actively engage the Doha round:

At the WTO ministerial meeting in Geneva in late July, China joined the organization’s inner steering committee for the first time. It seemed that China might be willing to help promote a fruitful outcome. But China, far from supporting liberalization, used its newfound clout to join India in seeking new protection beyond the red lines of most of the other participants, including many developing countries. Doha may thus become the first global trade negotiation to fail since the 1930s, when protectionism erupted everywhere and brought on a worldwide depression.