"The ID tag in you GAP jeans would only mean something to the GAP and your NIKE shoes to NIKE. In addition the tag would likely only contain information about the product."

So what? Each tag has a unique signature so that makes it an excellent tracking device. What do the ridges and swirls in fingerprints mean to investigators? Nothing. It doesn't matter what they mean. It's enough to know that they can be used to identify a particular individual. AND THAT'S THE POINT.


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