The Dangerous Link Between Lead Emissions And Crime Rates

The Dangerous Link Between Lead Emissions And Crime Rates: From 1960 to the early 1990s, the rate of violent crime in the U.S. rocketed from 150 to 750 per 100,000 people. Then it dropped just as precipitously, falling below 450 per 100,000 by 2009. A host of theories were been put forward to explain the turnaround: New crime fighting practices, economic booms and slumps, [...]/p