December 23rd, 2020 in Featured. Closed Timnit Gebru is one of the most high-profile Black women in her field and a powerful voice in the new field of ethical artificial intelligence (AI), which seeks to identity issues around bias, fairness, and responsibility. (Photo: Google AI research scientist Timnit Gebru speaks on Sept. 7, 2018, at TechCrunch Disrupt SF 2018 at the Moscone Center in San Francisco/Getty Images) The Washington Post By Nitasha Tiku Google hired Timnit Gebru to be an outspoken critic of unethical AI. Then she was fired for it. Two months ago, Google promoted Timnit Gebru, co-lead of a group focused on ethical artificial intelligence, after she earned a high score on her annual employee appraisal. Gebru is one of the most high-profile Black women in her field and a powerful voice in the new field of ethical AI, which seeks to identity issues around bias, fairness, and responsibility.