The task is further complicated by the relatively small size of the objects of the search.

CENTERFORSECURITYPOLICY: Don��t bother me with the facts

The IrisPen's small size is an advantage when working with irregularly shaped objects such as thick books.

CNN: Pen scanner reads, translates

This let researchers see objects as small as 1 nanometer in size--about five times larger than a single atom.

FORBES: Stealth Visionary