As the government tries yet again to get the ridiculously expensive, doomed invasion of privacy – sorry, I mean ID cards bill – through Parliament, The Independent lists the people who are likely to be mis-identified by biometric systems:

Bald men
Manual labourers
Pianists
Guitarists
People who do a lot of typing
Twins
Disabled people
Elderly people
Black people
People with eye problems
Accident victims
People who were scanned in “the wrong kind of light”