A Google DeepMind researcher has quit over the company's decision to sell its AI to the Pentagon, and he's not going quietly. Alex Turner, who spent more than two years on AI safety at DeepMind, resigned in June and this week published a 2,000-plus word account titled "Why I Left Google DeepMind," laying out months of internal lobbying that ultimately failed.

Alex Turner, a research scientist at Google DeepMind, said he tried to change Google executives' minds about working with the Pentagon.

A Google DeepMind researcher has quit over the company's decision to sell its AI to the Pentagon, and he's not going quietly. Alex Turner, who spent more than two years on AI…