Invention: Covert Iris Scanner

From New Scientist - Latest Headlines:

Sarnoff Labs in New Jersey, US, has been working on a clever homeland security system for the US government. It scans people's irises as they walk towards a checkpoint, without them even knowing it. Current systems require a person to stand still and look directly into a single digital camera from close range. The new system will instead use an array of compact, high resolution cameras, all of which point in slightly different directions and focus at slightly different distances.

Read the whole article