Kevin Drum has been making the case for lead quite passionately. Some interesting articles: http://www.motherjones.com/environment/2013/01/lead-crime-link-gaso

Kevin Drum has been making the case for lead quite passionately. Some interesting articles: http://www.motherjones.com/environment/2013/01/lead-crime-link-gasoline http://www.motherjones.com/environment/2013/01/lead-crime-li... http://www.motherjones.com/kevin-drum/2014/02/lead-and-crime-its-brain-thing http://www.motherjones.com/kevin-drum/2014/02/lead-and-crime...