Public health advocates used a little-known legal tool today to challenge a recent FDA move allowing a toxic chemical in food packaging, writes the advocacy group Environmental Defense Fund. The groups filed an objection to FDA’s decision to continue to allow perchlorate in dry food packaging. They also requested a formal evidentiary public hearing to secure an independent judgment of the agency’s decision. “Children get one chance at a healthy brain and the FDA’s decision puts that at risk,” said Tom Neltner, Chemicals Policy Director at EDF. “The food supply is already extensively contaminated with perchlorate, and exposure is going up for young children.”