From: Mike N. 

On Thu, 15 Feb 2007 21:16:08 -0500, "John Beamish"
 wrote:

> Hitachi used semiconductor miniaturization
>technology and electron beams to write data on the chip substrates to
>achieve the new, smaller size.

  Dispite all the alarmism, it would take something very specialized to
read this, not just a hand held wand.   It's similar to the microtags that
are used to trace the path of explosives back to production.

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