The old lines oft trotted out.."if you have nothing to hide..."
etc etc
Thats not the point, in fact, thats even CLOSE to the point
Make no mistake, this technology is far more about control and data gathering, than it ever will be about "protection".
Now off in sleepy old NZ some may think that this is the answer to most of the problems of border security/identity theft....when the reality is much more akin to another layer of state imposed beauracracy that lacks any real practical value.
Still not convinced? come over to the UK..more "data protection" laws than you can shake a Jihadi's fist at....and yet millions of innocent people have been left potentially exposed thanks to ministerial blunders, and lax procedures....and you think it won't happen there?