I think Huber implies the legitimacy definition of truth when he mentions peer reviewed articles, but he forgets that USDA has a greater legitimating power than individual scientists and their peer reviewers.
I consulted Wiki http://en.wikipedia.org/wiki/Glyphosate and found that the claims made in the article are not inconsistent with what is reported in the Wiki article - that evidence is inconclusive thus far, but there is reason to be concerned and continue further investigation.
The real question, though, is not scientific but political. What are the grounds for the official approval or disapproval of use of potentially toxic substances? Or stated differently - how much evidence must be established before a substance is allowed or pulled from the market?
-- Wojtek
"An anarchist is a neoliberal without money."