In the last days before a key vote by EU national governements on glyphosate, the pesticides industry and its allies are waging a dirty battle to destroy the reputation of the International Agency for Research Against Cancer (IARC). One scientist in particular, Dr C. Portier, whose work exposed many flaws and limitations in the risk assessment of glyphosate performed by EU agencies, is the target of their attacks. This analysis tries to dispell the lies from the facts.