Use of global positioning systems [GPS] to help keep track of where you are is commonplace. Obviously GPS has found to be very useful for people in cars, boats, airplanes and all other modes of transportation. And of course law enforcement and the military have been using it for years.

Now products are being developed every day to keep track of ordinary people.   For example, there is a product called the Spark Nano that parents can put in their child’s schoolbag to track their movements.

In England the Oxfordshire and Buckinghamshire Mental Health Trust has worked with a technology company to develop an electronic tag for people with dementia.    As noted on BBC News, this is not without controversy and raises questions about individual rights and privacy.  After first having misgivings about the concept, The Alzheimer’s Society in the UK has recently given the technology its backing.

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