[Ultimatt]

By targeted reconnaissance effort do you mean trivial geographic correlation based on your phones location data. So if the Google Street View car had a DNA sequencer on the back and GPS recorded any fragments and location it could trivially reconstruct quite a bit. No one has done this yet, but it's utterly doable. DNA is not private information its the most public information you can imagine is not controllable in any way thats meaningful to traditional thoughts on data privacy.

[jakear]

If an action requires less investment and provides the same value, it will happen more frequently — economics. A database lookup requires less investment than a targeted DNA harvesting, sequencing, and location correlation operation.

[zwirbl]

So because it is supposed to be trivial to identify people based on GPS, phone and DNA (which I dont believe), it doesn't matter if one gets his data into a DB, which gets leaked to the internet and then can be found/used by anyone? I don't think I follow u our reasoning. I'll also state that DNA is hardly the most public information there is, surely your face/skin color/size/other physical characteristics are more public?