Facebook has chosen to leave up a doctored video of House Speaker Nancy Pelosi in which she appeared to slur her words. That has outraged people who believe Facebook should do more to clamp down on misinformation.
But Facebook has long resisted making judgments about the truthfulness of posts, as doing so could open it up to charges of censorship or political bias. Some civil libertarians warn that pushing it in that direction could turn the company into an unaccountable censor.
Yet staying out of the line of fire is harder than it used to be, given Facebook's size, reach and impact on global society.
The social network can't help but run into controversy given its 2.4 billion users and the sorts of content decisions it must make daily.