"StopFake, like all of Facebook’s outside fact-checkers, signed a pledge to be nonpartisan and not to focus its checks “on any one side.” But in recent weeks, StopFake has been battling accusations of ties to the Ukrainian far-right and of bias in its fact-checking. The episode has raised thorny questions for Facebook over whom it allows to separate truth from lies — and who is considered a neutral fact-checker in a country at war.

“They are empowering these organizations and these people to be making calls about what kind of information, what kind of opinions, what kind of communications are illegitimate or legitimate,” Matthew Schaaf, who leads the Ukraine office of the U.S. human rights group Freedom House, said of Facebook and its fact-checkers. “The question that needs to be asked is, do these people deserve our trust?”"