Weedkiller found in granola and crackers, internal FDA emails show

US government scientists have detected a weedkiller linked to cancer in an array of commonly consumed foods, emails obtained through a freedom of information request show. The Food and Drug Administration (FDA) has been testing food samples for residues of glyphosate, the active ingredient in hundreds of widely used herbicide products, for two years, but has not yet released any official results. But the internal documents obtained by the Guardian show the FDA has had trouble finding any food that does not carry traces of the pesticide.