The citizens of the UK hold an aversion to any kind of ID card - for the duration of WW 2 cards were issued with the promise that they would be destroyed after hostilities ended. ID cards would not do anything to improve security under present circumstances and it would be a foolish politician who tied to introduce them. The phrase "thin end of the wedge"comes to mind when applied to this subject,we have enough documentation to prove who we are without further infringement of our civil liberties.