ACSH Director Dr. Henry Miller wrote an article about unscientific activists for Genetic Engineering News, which you can read in its entirety and which contains many choice passages such as this one about EWG and their salmon scare:
...In 2003, a nebulous entity called the Environmental Working Group (EWG) claimed to have evidence that the farm-raised salmon eaten regularly by millions of Americans contains high levels of PCBs. PCBs were identified in the press coverage as a toxin, probable human carcinogen, or a cause of cancer and nervous system damage.
These reports were grossly misleading. At levels of environmental exposure, PCBs have not been shown to cause cancer or any other disease in humans. The study, which was based on a sample of only ten fish, was condemned by genuine experts at a variety of institutions, including the Harvard School of Public Health, the U.S. Food and Drug Administration, and the highly respected American Council on Science and Health.
Unfortunately, the criticisms came only after EWGs report had generated national media coverage, and received little attention from the media.
On its website, the EWG makes no pretense about its possessing scientific credentials or expertise, and its president once admitted to a journalist that there was not a single physician or scientist on its staff...