Related article, without paywall:

‘Godfather of AI’ quits Google with regrets and fears about his life’s work, by Thomas Ricker, The Verge, May 1st 2023.

There’s also a brief article with additional information in the MIT Technology Review:

Hinton has long called out ethical questions around AI, especially its co-optation for military purposes. He has said that one reason he chose to spend much of his career in Canada is that it is easier to get research funding that does not have ties to the US Department of Defense.