![](https://viettan.org/en/wp-content/uploads/sites/2/2023/02/20230201-Dear-Mark3-1-768x487.jpg)
Open letter calling on Facebook to “unfriend” harmful social networks in Vietnam
Facebook has revolutionized how we consume, create, and share information. But it has also increasingly become a tool to suppress the very freedom of expression it was meant to promote, as political actors have manipulated the platform to curtail dissent and harass opponents.