something fundamental:
RFID chips (like the ones in the Mexican Police) work from external
power sources (they respond to radio signals using power from the
signal). Therefore, they have very short ranges (not even Bluetooth :-)
). Homing devices, per se, require relatively large power sources to be
able to broadcast over a useful distance -- say, a mile.
But that's doable. It would require either a) repeated surgeries to
replace batteries or b) a way to charge through the skin (which has been
done). It probably would not be comfortable. But it's totally doable.
But you still have to get a reciever within a mile of the person.
That's not always easy in the places where these things tend to happen.
--Ben
Michael Dinowitz wrote:
> Lets say your a major news organization (or govenment). You have
> reporters (or soldiers, etc.) in the field in places where they'll be
> kidnapped. You want to stop this or at least be able to track your
> people down fast. How much would it cost for some sort of homing
> beacon to be planted on (or in) them? How easy would it be for
> American troops to hunt down and kill the kidnappers if they had
> information of this sort? Why has no one thought of this before? Just
> knowing the tech out there last year, I see that this is 1000%
> possible and it's even easier today. It boggles the mind that we're
> one of the top tech countries in the world and we aren't using our
> tech to solve these problems.
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