Social Media "Censorship" Issues research

In September there was a lunch meeting, sponsored by the Berkman Klein Center for Internet & Society, that explored some of the issues presented by control of speech on the internet.  Here is an article about that meeting:  https://medium.com/berkman-klein-center/how-facebook-tries-to-regulate-postings-made-by-two-billion-people-bca9408b6b4b

Choose one of the issues presented in the article. Identify the issue in the title of your post.  Do some additional research about that issue.  Then document your finding - you can further explain the issue, you can offer a solution, you can dispute what has been posted with an explanation, etc.