Identity Cards Bill

I have listened carefully to the right hon. Gentleman’s speech and he has made a series of arguments that have not been easy to follow, but as far as I can see, almost every one of them is equally an argument against the Home Office running a passport system using a computer on which identities are stored. I struggle to understand why he is against ID cards, but in favour of passports. His main point seems to be that passports are compulsory, so if ID cards are applied to people with a passport, they will become compulsory too. But is he really saying that passports are compulsory?