Govt. tracks Cell Phones all at once, Accurately, without GPS or a Warrant
sswam.wordpress.com
sswam.wordpress.com
The "trueposition.com" web site makes it clear that they ship their hardware ("TruePosition Location Measurement Units") ostensibly for 9-1-1-from-mobile purposes.
For that reason (and others) it seems to me extremely likely that carriers don't need to be forced to support mass tracking at all. It's already there or easily slipped in. (The TruePosition platform does not rely exclusively on the Location Measurement Units.)
Heh.... This merits looking into:
http://www.trueposition.com/web/guest/press-releases?p_p_id=...
Here (about that):
http://www.forbes.com/2010/06/23/iphone-congress-mobile-tech...
big brother could identify the people who meet with known peace activists or political rivals, find their meeting places, and disrupt meetings or capture participants. They could track a target user until he might travel to a less populated area, then dispatch someone or something to capture or kill him.