I guess I'm in there too. But passports get copied and provided to so many institutions these days that I wouldn't even consider nationality and passport number as private.<p>Now, if someone is traveling to Thailand to partake of some of the more controversial options, then I can see how this would be damaging.<p>We should all do our best to maintain privacy, but at the same time we should understand that the concept of privacy is changing. And by that I mean that we have less - and will have even less in the future - privacy than people did 10+ years ago.<p>It won't be long before biometric and other personally identifiable scanners will be integrated into much of what we touch or where we go. It may not be publicly known or even legal, but it will (and probably already does) happen. Just look at the NFC and facial recognition systems in much of our shopping places...