A look at the growing anti-AI movement in the Bay Area, as the disappearance of Sam Kirchner, co-founder of a hard-line activist group, has the movement on edge (Zusha Elinson/Wall Street Journal)

Zusha Elinson / Wall Street Journal: A look at the growing anti-AI movement in the Bay Area, as the disappearance of Sam Kirchner, co-founder of a hard-line activist group, has the movement on edge  —  The resistance to artificial intelligence is growing over fears about human extinction—but one activist's disappearance has the movement on edge