The concern isn't that you are generating too much video -- you can always turn it off. The concern is that everyone else all around you is generating too much

The concern isn't that you are generating too much video -- you can always turn it off. The concern is that everyone else all around you is generating too much information about everything they see. Think "The Dark Knight," the scene where Batman uses a whole bunch of passive cellphones to map out the city and the people in it. The NSA is already spending enormous amounts of money building giant data warehouses, and there have been some startlingly accurate demos of live facial recognition software. It's really not that farfetched, technologically.