This morning’s Observer column:

The headline above an essay in a magazine published by the Association of Computing Machinery (ACM) caught my eye. “Facial recognition is the plutonium of AI”, it said. Since plutonium – a by-product of uranium-based nuclear power generation – is one of the most toxic materials known to humankind, this seemed like an alarmist metaphor, so I settled down to read.

The article, by a Microsoft researcher, Luke Stark, argues that facial-recognition technology – one of the current obsessions of the tech industry – is potentially so toxic for the health of human society that it should be treated like plutonium and restricted accordingly. You could spend a lot of time in Silicon Valley before you heard sentiments like these about a technology that enables computers to recognise faces in a photograph or from a camera…

Read on