trader_4 writes:

The key issue there would seem to be:

A - Is glyposate at the levels found in foods consumed by people
a poison? Bleach is a "poison", yet it's added to municipal
water systems. So is flouride, which is also added to many
water systems.

B - What amount of glyphosate is left when the crop is consumed?
And is that level harmful? Crops are sprayed with a variety of
chemicals prior to harvest, eg insecticides. If that is OK, then
what is so unique about glyphosate on GMO crops?

http://en.wikipedia.org/wiki/Glyphosate#Human

Excerpt:

The EPA considers glyphosate to be noncarcinogenic and relatively low
in dermal and oral acute toxicity.[20] The EPA considered a "worst
case" dietary risk model of an individual eating a lifetime of food
derived entirely from glyphosate-sprayed fields with residues at their
maximum levels. This model indicated that no adverse health effects
would be expected under such conditions.

--
Dan Espen