Dear Editor, Many residents of Austin are comfortable knowing the city puts fluoride into the water because they believe it is safe and reduces tooth decay. How many would be comfortable if they knew that the fluoride Austin is putting in our drinking water is fluorosilicic acid (toxic waste from the fertilizer industry) that the city buys from Lucier Chemical Industries? How many know that worldwide there are now 25 studies showing fluoride in water lowers IQ in infants? And how many know that comparisons between communities that fluoridate and communities that do not show similar reduction in tooth decay?