Quite grim comment from Schneier: ”Security and privacy controls are still to be worked out, which means that there probably won’t be any.”
This can be used to monitor someone's breathing in a non-invasive way, which would be good. Here's a startup that has been working on it: https://www.originwirelessai.com/technology
Another reason to leave the city.
it will come to the country as a google car... or something else