May I take the Home Secretary to the day on which the scheme becomes compulsory? People from the United States, France and Mongolia will possess passports and related documents that entitle them to be in the UK, whereas my right hon. Friend and I will have identity cards. However, people who commute from Donegal to Derry or Doncaster, or from Dublin or Cork to London each week for working Monday to Friday will not possess and cannot be required to possess the identity card. Justice Minister McDowell may be pursuing biometrics for the European passport, but I am told that there is no way on God's earth that the Irish Republic Parliament will introduce compulsory identity card systems—not now and not in a decade. How, then, will it work?