The Technology of Minority Report is Closer Than You Think

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Remember that scene is Minority Report where Tom Cruise is walking through a mall and all stores are scanning his eyes and sending him personalized ads directly to him?  Well the basic form of that technology is already here.  It's being used in many applications right now, the number one being in other countries where people need to be ID'd but don't have any form of identification card. 

I'd be willing to guess commercial use isn't too far off.  

Think you'll have your retina image added to a database in your lifetime?  I think for people in my age group it is a pretty big possibility.