Following the explosive response to her tell-all memoir, an ex-Facebook director-turned-whistleblower testified before Congress on Wednesday alleging Facebook’s close relationship with China poses serious risks to U.

Sen. Josh Hawley is calling on Mark Zuckerberg to testify after a Facebook whistleblower alleged in a Senate hearing that the company had ties to the Chinese Communist Party.

Former Meta executive Sarah Wynn-Williams accused the company of secretly collaborating with the Chinese government on AI and censorship, then lying to Congress. Testifying before the US Senate, she claimed Facebook aided Beijing’s censorship efforts.