"Even if a lead poisoned child is found to have a normal IQ and behavior, the reality is that this normal IQ is likely 10-15 points below what the child was born with and the child will still be struggling with inner demons due to impulsivity unleashed by lead. A child born with a 115 IQ has a right to a 115 IQ, and if the child now has an IQ of 100, that is NOT normal. If the lead is there, the child is brain damaged. Ignoring the damage is easy, but it does not mean it does not exist."
Michael T. Martin, Arizona School Boards Association, in
"A Strange Ignorance: The Role of Lead
Poisoning in 'Failing Schools,'" 2002