Alva Review-Courier -

SEATTLE (AP) — Amazon's decision to market a powerful face recognition tool to police is alarming privacy advocates, who say the tech giant's reach could vastly accelerate a dystopian future in which camera-equipped officers can identify and track people in real time, whether they're involved in crimes or not.

It's not clear how many law enforcement agencies have purchased the tool, called Rekognition, since its launch in late 2016 or since its update last fall, when Amazon added capabilities that allow it to identify people in videos and follow their movements almost instantly.

The Washington...