This has been done for years -

Author	All Replies
AnonProxy Premium join:2001-05-12	This has been done for years In fact I wrote the software the the US Gov't uses and has used to track people via cell towers. The program is unofficially called Trakker and can be used in real time based on cell site triangulation with allowances for delay to relay. It was used to track the people that kidnapped and killed Sidney Reso (his bodyguard and the bodyguards wife -Arthur and Irene Seale)
	to forum · permalink · 2008-02-09 18:07:38 ·

FiL Premium join:2005-08-16 Silver Spring, MD	good for you... i like a person that'll do anything for a paycheck.
	to forum · permalink · 2008-02-10 17:35:29 ·

Tracking People Via Cell Phone > This has been done for years