In an article adapted from her recent book Atlas of AI, Crawford explains why relying on facial recognition to determine a person's emotional state isn't accurate. Even though tech companies continue to argue otherwise, the ability of AI to assess emotion based on facial expressions is far from an exact science. All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission. Popular on Engadget