The paranoid will be with us always. It's an especially difficult problem because the incidence of autism has been increasing. Thiomersal doesn't seem to be the culprit but what is? Has there been a decrease in the rate of spontaneous abortion that allows suboptimal fetuses to survive? Is it the hole in the ozone layer on perhaps an increase in he use of obstetrical ultrasound? Is there a geographical factor? Jon Slater Comox, B.C. http://www.usefilm.com/photographer/20412.html