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----- Original Message -----
From: "Jack Uretsky" <jlu@HEP.ANL.GOV>
Well in fact, that is what the Military DOES!
Would you send in an order with a lot of "guard" digits?
Regards,
Jack
Back in HS/College I worked in a metals warehouse. One summer I became
the
assistant on a special job setup. We were to cut thick aluminum sheets
into
precise blocks. The tolerances were very close and the resulting blocks
had
to be polished--could have no scratches--and had to be carefully packaged
and shipped. I later learned exactly what these blocks were for---they
were
ballast blocks placed in the tails of helicopters!
Rick