Recently, a colleague told me (Dan Gillmor) he'd learned of a company that was planning to sell a location-tracking chip designed to be implanted into human beings. He said he'd put one in his newborn daughter.
I was appalled, as he expected. He suggested we write a point/counterpoint pair of essays on this subject. Here's how they came out:
The chip they are talking about is Digital Angel, and was mentioned on this site recently. Click for the archive news entry that contains it. I have also listed the articles separately so they will get picked up by the XML/RSS news feeds.