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More parents going high-tech to track kids

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In this case, it isn't Big Brother who's watching -- it's Big Mother (or Father). Increasingly, parents are using high-tech methods to track everything from where their children are and how far they are driving to what they buy, what they eat and whether they've shown up for class.

Often, the gadget involved is a simple cell phone that transmits location data. The details get delivered by e-mail, cell phone text message or the Web.

Other times, the tech tool is a debit-like card used at a school lunch counter, or a device that lets parents know not only how far and fast the car is going, but also whether their child has been braking too hard or making jackrabbit starts.

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