Claims about occupational hazards, chemicals correlated to disease, occur every week, from non-stick spatulas to flame-retardant couches, and the group targeted more by those efforts than pregnant women are first responders like firefighters.
A new
paper links gliomas in the brain or spinal cords to a specific mutation and then using epidemiological correlation to "suggest" cause from haloalkene, a common chemical in use for 600 years and in the 20th century in nearly every home with fire extinguishers, but then denying they are trying to suggest cause down at the bottom.