Fourteen hundred employees of Google have signed a letter protesting against their company’s plans to launch a service in China that will allow Chinese censors to block search terms about human rights, democracy, religion and peaceful protest. The New York Times reports the workers say the plan raises “urgent moral and ethical issues.” Earlier this month, The Intercept reported Google’s project, code-named Dragonfly, was launched in the spring of last year and accelerated after Google’s CEO met with a top Chinese government official in December.