Carey Gillam writes: “The U.S. Food and Drug Administration (FDA), the nation’s chief food safety regulator, plans to start testing certain foods for residues of the world’s most widely used weed killer after the World Health Organization’s cancer experts last year declared the chemical a probable human carcinogen. The FDA’s move comes amid growing public concern about the safety of the herbicide known as glyphosate, and comes after the U.S Government Accountability Office (GAO) rebuked the agency for failing to do such assessments and for not disclosing that short-coming to the public. Private companies, academics, and consumer groups have recently launched their own testing and claim to have detected glyphosate residues in breast milk, honey, cereal, wheat flour, soy sauce, infant formula, and other substances. FDA officials dubbed the issue “sensitive” and declined to provide details of the plans, but FDA spokeswoman Lauren Sucher said the agency was moving forward to test for glyphosate for the first time in the agency’s history.”