New reporting on two large collections of leaked documents sheds light on the trade of surveillance and censorship technology into and out of China. One, by Dake Kang and Yael Grauer for the Associated Press, builds on an initial collection of thousands of documents leaked from Chinese surveillance company Landasoft to demonstrate how "
partnership between American firms and the Chinese police laid the groundwork for China’s digital surveillance state as it exists today — the largest and most sophisticated on earth."