Um... why is that such a big deal? It is in their schoolbag, not their body. It only works in relation to the school bus. The only info on the "chip" is their student ID number which is read by a device on the bus and logs them in and out of the bus. You have to log into a website to see the info. It is no different than using a cell phone with GPS... actually, it is far less invasive than the cell phone, since it only tracks when and where the kids enter and exit the school bus.
Of course, my husband has all of his employees tracked by GPS all day long, so maybe that influences my opinion.
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