Barely a week after Frances Haugen cane forward to address her allegations against the social media giant, another Facebook whistleblower says she is willing to testify before Congress. Sophie Zhang has said that after working at the tech giant, she felt like she had \'blood on her hands,\' adding that she has already provided a US law enforcement body with the company\'s internal documentation. Facebook Not Doing Enough Zhang had apparently worked as a data scientist at Facebook for nearly three years, before she was fired last year. Back then, she had written a lengthy memo de...