So after reading this article

Here is an excerpt:

Grins banned from passport pics
Travellers have been ordered not to look too happy in their passport photographs to avoid confusing facial recognition scanners.

Toothy, open mouthed grins are being outlawed from the tiny 35mm by 45mm photographs because they will throw off scanners used at airports.

Great we’re using biometrics, next thing we’ll have to do is paint red dots on our faces to help the scanners actually do the job right… *groan* (oops I’m probably not allowed to do this either.)

It’s not that I actually have anything against biometrics, well I do actually, but right now the technology is just pants.

On another note I have absolutely no faith or trust in the governments ability to introduce another computerised system and not have it go tits up.