Why do public health officials so staunchly defend fluoridation, given the evidence shows overwhelmingly it is unsafe and ineffective? Because if we show fluoridation is useless, public health officials will lose credibility and then the public will start questioning other public health measures. Such as vaccination. This is the Golden Goose of pharma and must be defended at all costs.  If you haven't already, read Paul Connett's book 'The case against fluoride'.