The economist. Tracking devices + Gps + Miniaturization = Big brother.
Seem that a new breed of tracking devices is being breed. The name is Digital Angel but I am sure that some less angelic use come fast to mind. Here is the article.
the new generation of tracking devices combines two existing technologies. One is a global-positioning-system (GPS) chip, which uses radio signals from a network of satellites to work out where it is on the earth's surface to within a few metres. The other is a mobile-telephone chip, which broadcasts that location to whoever needs to know it. The result is a pocket-sized, or even wrist-sized, personal locator
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