First Amendment confusion has negatively affected the national dialogue about the role of social media and has raised a series of imprudent proposals.
Facebook and Twitter said they both removed several fake accounts tied to a state-backed campaign to spread disinformation about pro-democracy protesters in Hong Kong.
Presidents and other world leaders and political figures who use Twitter to threaten or abuse others could find their tweets slapped with warning labels.
In specific narrow domains like terrorism, companies have adopted blacklists of previously identified material, but in terms of proactively preventing new illegal and harmful content from being posted in the first place, the companies have largely struggled.
The FBI can't "get in a Twitter war with the president," McCabe said Wednesday. "It's hard to publicly fight back against conspiracy theories."
Tech giants Facebook, Twitter and Google are taking steps to police terrorists and hate groups on their sites but more work needs to be done.
President Trump said in a television interview Friday that he was ready to apologize for retweeting anti-Muslim videos from a far-right British group.
Twitter's rules state users "may not make threats of violence or promote violence, including threatening or promoting terrorism." This includes direct as well as indirect threats.