One of the challenges to fighting the COVID-19 pandemic is curbing the spread of misinformation. Google, YouTube and Twitter have each taken steps to provide accurate info and remove false content, but Congressman Adam Schiff says that’s not enough. In letters sent to the CEOs of Alphabet, YouTube and Twitter, Schiff asks the companies to also notify users when they have interacted with coronavirus-related misinformation.

Schiff is encouraging the companies to be more like Facebook. Last month, Facebook began alerting users if they have liked, reacted or commented on content that is later flagged by its third-party fact checkers. In his letter to Jack Dorsey, Schiff noted that Twitter took a similar approach in 2018 when it notified users who followed Russian spam accounts.