Should Homer Simpson ever try to smuggle his unqualified identical twin brother into work in his stead, a new biometric identification system that will be used to secure nuclear plants is sure to prompt a "D'oh!" or three.
The technology, which comes from a Japanese firm called Sagawa Advance [Japanese link], is sufficiently accurate to be able to tell identical twins apart - a massive advance on current technologies.
Every pore analysed
It uses an infrared scanner to analyse 40,000 data points on a face before comparing the details against a database of people it already knows. If there's no match then access to power plants, medical factories and other sensitive areas is easily denied.
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Sagawa plans to sell the scanner and database computer set for ¥6 million (£30,000) later this year, with a view to shifting 40 units in its first twelve months.