I think it's an acknowledgement of those complications that we are proposing a categorical legislative mandate to phase out cancer-causing substances and substances that are toxic to reproduction in consumer products. It would of course be very difficult and expensive to pinpoint exactly where every single exposure occurs. But we know that cumulatively there are devastating health impacts associated with these exposures. We know that to a large extent they don't need to be in products. So it would be a real step forward to signal a whole shift in direction that would move manufacturing away from those risks.
On June 2nd, 2009. See this statement in context.