[Ramius]

How does it affect my liberty for me to be able to identify myself, and make it difficult for someone else to identify themselves as me?

Do you consider it an invasion of your privacy when the bank wants ID before you can transact on your account? I suppose so.

Or which affects your freedom to travel more: a.) showing ID to the airline, and flying to your destination, or b.) a collapsed airline industry because the public won’t board planes?

[Wonder Warthog]

I consider it an invasion of my privacy when the data is entered into a central government controlled databsase for the purpose of tracking whereabouts. You can have the ID without the database.

it's an incredibly dangerous increase in government intrusion into our privacy.