Yoel Roth

</ref> His previous academic work focused on privacy and self-expression on geospacial social networking services.
In 2014 he began work as a researcher at the Dangerous Speech Project at the Berkman Klein Center for Internet and Society.
In 2020 he supervised a new policy banning deepfake videos to ensure election integrity as well as one introducing warning labels on potentially harmful tweets about the coronavirus pandemic.
In February 2022, following the Russian invasion of Ukraine Roth presided over efforts to label Russian state affiliated media sources and in march expanded policies to slow the spread of disinformation about wars and natural disasters.
Roth has spoken in this capacity at the RSA Conference on defending against disinformation campaigns on social media and to NATO about preventing online propaganda.
Following the purchase of the platform by Elon Musk, who had announced plans to change moderation practices, Roth disclosed a concerted effort to present a change in moderation practices on the platform, consisting of 300 accounts posting more than 50,000 tweets. At the time, no change in moderation policies had occurred.
 
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