You two should get married! No one has said that ID cards would protect us from someones slamming a plane into Manchester Town Hall (for an example)What they will do is provide a means by which the police can identify who should be in this country and who shouldn't. You talk about ID cards as if they are a major breach of civil liberties!! If that is the case then everytime we put our bank card into an ATM, walk past a cctv mast or get flashed by a speed camera on the motorway then according to you our civil liberties are being denied. All these measures are being put in place so as to ensure our security as best the government can in the current climate.