Here's the longer article: http://www.economist.com/news/briefing/21582041-rich-world-seeing-less-and-less-crime-even-face-high-unemployment-and-economic http:/

Here's the longer article: http://www.economist.com/news/briefing/21582041-rich-world-seeing-less-and-less-crime-even-face-high-unemployment-and-economic http://www.economist.com/news/briefing/21582041-rich-world-s... The economist clearly doesn't agree with you, here's what they said about lead: Jessica Wolpaw Reyes, an American researcher, has argued that the cognitive effects of exposure to lead were a primary determinant of violent crime, and unleaded petrol is to thank for the improvement. But the causal link is far from proven.