Despite burning curiosity, I have no idea what the Dalai Lama writes in his personal emails. But somewhere in China, hackers know. China-based hacking operations have moved from murmurs to the front page since the fracas between the Chinese government and Google flared up three months ago. Besides the communist government's flagrant and unapologetic Internet censorship, the search giant also accused China of harboring hackers who were behind politically motivated cyber attacks, like the targeting of Chinese human rights activists' Gmail accounts. This week, computer security experts at the Munk School of Global Affairs at the University of Toronto announced that they've been trailing a group of China-based attackers they dub the "Shadow Network" for eight months. And they say they can show that those hackers have stolen a plethora of politically sensitive materials.