I was invited to give a talk before the national commission investigating the use of the biocide fipronil in the egg sector. Since the summer of 2017 millions of eggs have been pulled from supermarket shelves in more than a dozen European countries. The cause of this extensive recall was the discovery of eggs contaminated with the potentially harmful biocide called fipronil. While this substance is commonly use to do away with fleas, lice and ticks, its