Well I was doing some reading today before going to sleep (I work 3rd Shift) and came across this:

https://en.m.wikipedia.org/wiki/Total_Information_Awareness

I remember watching that movie spygate by the one woman and it touched on this. And yup, pretty much all is true. And to think this is whats out as knowledge, the governments actual abilities are probably even more in depth.

The part about Gait recognition stands out, how many times have we seen a grainy ass surveillance video on the news with a local PD requesting help identifying a suspect. The videos not actually for us, its plausible deniability for when they use gait recognition to catch someone and they can just say a "tip" helped them out.