From: Eugen Leitl (eugen@leitl.org)
Date: Wed Nov 20 2002 - 07:04:28 MST
On Wed, 20 Nov 2002, Chuck Kuecker wrote:
> GPS is notoriously unreliable inside structures, and won't work at all in
GPS is unnecessary to locate you within 100 feet in a given cell. The base
station contains the infrastructure, and your provider is required by law
to cooperate with LEOs. It is trivial to radiate information on location
of all cellphone IDs on a given cell, and its change over time. Portable
cellphone ID capturers exist, allowing LEOs in the field to assign the ID
to a given warm body. For all I know some box with realtime position info
of all mobile toters is already in operation somewhere (unlikely, though).
GPS makes this just easier, but is not actually necessary. Given backdoors
or exploits your cellphone can also double as a portable audio bug. A bug
you care not to lose, and pay for by yourself, that's dreamy, if you
happen to be a fed. Of course if you have a LED light attached to the
antenna you can see when it sends, and it will have a noticeable drain on
the battery (fuel cells and always-on devices with reduced sending power
will make this more difficult to detect).
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