Secure database ?
Well that's OK then - right up to the point where some tosser loses it, leaves it on the train, loses his copy on a USB stick or decides to sell out.
What's wrong with what we've got already - God knows it's hard enough to get Airside passes - and Security don't take any notice of them anyway, we still get treated like criminals?
This subject does tend to raise the blood pressure somewhat doesn't it?