Facebook has begun restricting viewing of offensive videos or images by placing warnings over them. The warnings warn other users that the content might "shock, offend and upset" them if they choose to view it. It stops the videos from automatically playing unless they are actively clicked on. The social network stresses that the warnings are a reactionary measure used when certain content has been reported to it. Any user who has identified themselves as under 18 will also be unable to view the content.