So true

EducationGuardian.co.uk | higher news | ID card scheme 'will be costly fiasco': "To demonstrate the point, which has been well established by psychologists, he recently staged an experiment. Aston students filed into a room, put their ID cards on a table watched by a security guard and then sat down. The guard had to hand the cards back to the right students - and only got seven out of 17 right, despite doing it several times for television cameras. Even individuals from different ethnic groups - Asian, Chinese, white - were muddled up."

All I would add to this is that I'm almmost certain David Blunkett would do no better than the security guard.