Tens of thousands of children are poisoned every year from accidentally ingesting rat poison. EPA responded in 1998 with a rule that added a bitter taste to the poison and a dye to make it more obvious that a child has ingested rat poison. The Bush administration promptly reversed course in 2001 and repealed these requirements, even though they do not make rat poisons any less effective at killing rats. Citing Poison Control Center data that the number of reported child poisonings has increased every year since the Bush EPA changed policy, NRDC and West Harlem Environmental Action have filed suit, challenging the policy reversal under RFRA and the APA. Read more about it here.