"As auto sales boomed after World War II, and drivers in powerful new cars increasingly asked service station attendants to "fill 'er up with ethyl," they were unwittingly creating a crime wave two decades later," reports Mother Jones in "America's Real Criminal Element: Lead." As it turns out, contact with lead can give rise to aggressive and delinquent behavior, not to mention learning disabilities and lower IQ scores. When leaded gasoline was phased out in...

