The aftermath from the fallout. She was a star engineer who warned that messy AI can spread racism. Google brought her in. Then it forced her out. Tom Simonite unravels the controversial circumstances surrounding Timnit Gebru’s exit from Google, and the complex backdrop surrounding it. “In-house ethical AI research may forever be held in suspicion.” In the final part of this story, we learn about exactly what happened at Google after Gebru’s exit — and what this means for the future of ethics in AI.