I have an article on this subject in the new issue of the Atlantic (subscribe!). I had done the reporting and writing for the story long before the Google-v-China controversy broke. We had a day or so to take note of that development before the issue went to press. Welcome to life in the monthly magazine business! I think that the analysis in the story actually stands up well in light of the Google episode -- including the insiders' estimate that China is a serious source of international cyber-attacks, but not the leading source and perhaps not even the second most important. More in the article itself (illustration from this issue, below).