And another factor is: What happens to the information that the "dog" doesn't react to? The live dog can't communicate that it also smells gasoline, motor oil and so forth around the car, but it does store that information in it's brain. It doesn't know what motor oil is, but it knows what "x" smells like, and that it has no interest in "x" because it doesn't get rewarded for it. And there is no way (at least currently) for humans to dissect a dog's brain to find out what else it smelled around the car.

For an internet agent, given the current and future limitations of cryptography, there will always be a risk that "private" information will be examined even if it wasn't flagged as criminal. And given the audit-trail requirements (and organizational voyeurism) of law enforcement agencies, I can't believe that the private information would actually be purged from the system in a timely manner. So there's still a chance that the internet agent would fail the "infrared" test if it archives data, no matter how encrypted (and rules of evidence tests if it purges data?).


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