If you Google “What is the world’s biggest private spying-services contractor?” the result should read: “Google.”

In November, Google employees published a letter of protest against Project Dragonfly, Google’s search engine for the Chinese market, alleging that the tool would facilitate government censorship of and spying on citizens. “Providing the Chinese government with ready access to user data, as required by Chinese law, would make Google complicit in oppression and human rights abuses,” they wrote. “Many of us accepted employment at Google with the company’s values in mind, including its previous position on Chinese censorship and surveillance, and an understanding that Google was a company willing to place its values above its profits.”