The race to create a perfect lie detector – and the dangers of succeeding

The long read: AI and brain-scanning technology could soon make it possible to reliably detect when people are lying. But do we really want to know?
Read more: https://www.theguardian.com/technology/2019/sep/05/the-race-to-create-a-perfect-lie-detector-and-the-dangers-of-succeeding?source=Snapzu