Not sure I see the significance of this.  Where has there been any 
adulteration to HFCS that was produced with GMO cropping practices?
It will be no different with sugar beets.

Of all the chemicals to be applied on our agricultural fields, Roundup or 
its generics is probably the one that would be prefered.  There are many 
other chemicals used today that roundup is replacing that are far worse 
for environmental reasons and applicator safty.

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