[giantg2]

"nobody is saying lead causes violent crime...

many studies seems to show that it is a contributor to crime."

This seems contradictory. How can it not cause violent crime yet be a causative factor?

I can see how it might be correlated. But I've never heard a compelling argument for how it would be causative.on any significant level.

[po]

Sorry, When I said "nobody is saying lead causes violent crime" I meant "nobody is saying lead is the sole cause of violent crime."