America's Real Criminal Element: Lead

America's Real Criminal Element: Lead
FILE - In this Thursday, Feb. 23, 2006 photo, contractors Luis Benitez, foreground, and Jose Diaz, background, clean up lead paint in a contaminated building in Providence, R.I. For the first time in 20 years, U.S. health officials have lowered the threshold for lead poisoning in young children. The new standard announced Wednesday, May 16, 2012 means that hundreds of thousands more youngsters could be diagnosed with high levels of lead. Too much lead is harmful to developing brains and can mean a lower IQ. (AP Photo/Chitose Suzuki)
FILE - In this Thursday, Feb. 23, 2006 photo, contractors Luis Benitez, foreground, and Jose Diaz, background, clean up lead paint in a contaminated building in Providence, R.I. For the first time in 20 years, U.S. health officials have lowered the threshold for lead poisoning in young children. The new standard announced Wednesday, May 16, 2012 means that hundreds of thousands more youngsters could be diagnosed with high levels of lead. Too much lead is harmful to developing brains and can mean a lower IQ. (AP Photo/Chitose Suzuki)

New research finds Pb is the hidden villain behind violent crime, lower IQs, and even the ADHD epidemic. And fixing the problem is a lot cheaper than doing nothing.

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