About a month ago, Above the Law published an article about eagle feathers. More specifically, it discussed whether the Supreme Court’s decision in Hobby Lobby (which recognized the company’s claim for a religious exception to secular laws) will be extended to Native American tribes who wish to use eagle feathers in religious ceremonies despite their protection under the Migratory Bird Treaty Act and the Bald and Golden Eagle Protection Act. In the form of an aside, the article made a good point:
In its January/February issue, Mother Jones covered a report on the link between lead and human behavior. Rick Nevin, a consultant at the US Department of Housing and Urban Development ran some tests on the link between lead and violent crime:
In a 2000 paper (PDF) he concluded that if you add a lag time of 23 years, lead emissions from automobiles explain 90 percent of the variation in violent crime in America. Toddlers who ingested high levels of lead in the ’40s and ’50s really were more likely to become violent criminals in the ’60s, ’70s, and ’80s.
As the graph linking pirates and global warming famously shows, it’s possible to commit a correlation/causation fallacy any which way you like, so Nevin repeated his research in other countries for confirmation: