Lorenzo Tomatis got it. But few others do. Among those who don’t are the many managers at the National Institute of Environmental Health Sciences (NIEHS) who refuse to allow that the EMF–cancer playbook may be different from the one for chemicals. Even now, when there is ample evidence that power line EMFs can increase the risk of childhood leukemia and there is a growing suspicion that cell phone radiation is associated with three different types of tumors, NIEHS prefers to look the other way. The institute has long resisted endorsing precautionary policies for any kind of EMFs.