Well, first of all, I’m an amateur radio operator, I’ve actually participated in a triangulation event so I understand what it is and how it works. As far as it being “not impossible” that’s quite the understatement. Cellphone location records are routinely obtained for police investigations and prosecution. After glossing over a half-dozen internet articles, it appears that the vast majority of cellphones in actual use contain a GPS device, whether it is exposed to the consumer or not, and this device is what satisfies the FCC’s E911 requirements.
I’ll emphasize this point one last time: the ambitions of the domestic surveillance apparatus are difficult to overstate. Feel free to sluff it off as the rantings of a paranoid but I’ve done my homework on this one and I suggest you do, too, especially since you frequent this site and, I assume, others like it.
Clayton -