This is a VERY controlled environment - and they used 20 passes of each person walking with direct knowledge of each person to train for identity. They did no tests with multiple people walking at the same time, or with any other external moving distortion effects (doors opening, etc) . This is very far from actual 'identification' of people in real public settings - and no doubt the cell phone everyone is carrying w…
Yes but this is just the start and its already good enough for an ICE car to park outside your house and check if you're home and what room you're in.
They can do that by looking at the cars in my driveway/garage and or just watching the windows for any period of time. Plus my phone. If agents are sitting outside of your house, they aren't going to drive away because you pull the plug on the router and suddenly deprive them of BFI packets.