said by n2jtx:
I guess if you do not have a data plan or do not use it (I don't use my Sprint data plan) then this particular option does not work. In that case, they need to set up spoofed public WiFi hotpots.
Who cares why how they are doing it, the real question is why? And spoofing WiFi hotspots is even easier than the cellphones. I can create (spoof) a McDonald's, etc WiFi with my phone easily. And then all the data going through can be spied on. It shouldn't be but can and that is the whole point.
"The relationship between what we see and what we know is never settled..."