Realistically, when such systems roll out they happen to easily regulatable entites (shops) and not to private people. So every costco or bank would have a mach

Realistically, when such systems roll out they happen to easily regulatable entites (shops) and not to private people. So every costco or bank would have a machine to track the bills by number and it would go from there. Not that I want this to happen, but it's perfectly imaginable. Yeah, the floodgates of information into surveillance, they are just completely open and people are way past caring. It's just too much to understand. And like Snowden says, of all that "metadata", you don't need much of it to do the meaningful tracking you need.