Following my aside about the difficulties of signing up to one's local video store, Alan quite rightly points out that the card should be perfectly adequate for security vetting purposes (he works for a defence contractor). Wait a second. Proving one's residency to Blockbuster is intensely onerous, and the card is evidence that you've passed their stringent checks and are indeed who you say you are.
Call David Blunkett -- he can save £3.5bn by subcontracting the national ID card scheme to Blockbuster, and people will actually have a reason to support the card, if they can hire videos with the damned thing. Genius!
Meanwhile, I'm in Cambridge for a day or two. Of which more, later.
Cambridge? Look us up, maaan!