Warning the world about Chinese surveillance could have been one of the motives behind the US government’s claims that Chinese devices cannot be trusted. But an equally important motive seems to have been preventing Chinese devices from supplanting American-made ones, which would have limited the NSA’s own reach. In other words, Chinese routers and servers represent not only economic competition but also surveillance competition: when someone buys a Chinese device instead of an American one, the NSA loses a crucial means of spying on a great many communication activities.
