Testimony to House committee by former Facebook executive Tim Kendall
&gt; In 2016, internal analysis at Facebook found 64% of all extremist group joins were due to their own recommendation tools. Yet repeated attempts to counteract this problem were ignored or shut down.<p>That&#x27;s pretty damning. Facebook execs knew that extremist groups were using their platform and Facebook&#x27;s own tooling catalyzed their growth, and yet they did nothing about it.