What Responsibility Does Facebook Have For Disseminating News?

Pretty cool NYT article (here), discussing the role Facebook plays in sharing important information.

In the article, it mentions a MIT/Harvard study about how news is shared on platforms like Facebook:

The findings partially echoed a long-held worry about social news: that people would use sites like Facebook to cocoon themselves into self-reinforcing bubbles of confirmatory ideas, to the detriment of civility and a shared factual basis from which to make collective, democratic decisions.