Mitch. I think you might want to take a larger view of things before postulating suppositions like this lead connection. If lead exposure were an issue the rest of the world should be far more compromised that the US. The level of exposure to lead, and many other toxins is far greater in places like China, India, Russia. The post USSR environmental disaster in Eastern Europe makes Detroit water ( a huge failure of local leadership) look like pale in comparison. If your logic path is meaningful most of the rest of the world should be in worse shape than you or me.