So, it at least looks doubtful that porn increases sexual violence; it may reduce it.
A couple of links on migration:
Where is everybody? Some difficulties in migration research and some new data sources (VOX).
Less Mexicans migrating (PeopleMove)?
Is the market crazy? (Freakonomics) I don't think so. I'm not surprised at a decline in stocks with the uncertainty about the debt and, more importantly, about debt politics. Political uncertainty can be an important factor in economic performance, but over the long run superior property rights, contracting, and civil liberty will root out the short run uncertainty wrought by partisanship.
What are the Tea Partiers' interests? (Economix)