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ID in the Blink of an Eye
It's a sort of bar code for the body: iris scans that allow bank customers to get cash from an ATM. Cheaper, easier and more secure than today's usual methods of identification, the technology could change commerce.

 

 
  Science in the News
Science Stories
The Post's science articles.
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Detailed reports on science issues.
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Library of Web science sites.
Horizon
The Post Learning Section
Science Notebook
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Stories from the science notebook of the Post
  

Multimedia / Interactive
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    Lightning Statistics and Effects
    America's Endangered Rivers
    National Science Bowl Quiz
    Understanding Satellites

 
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