Pima County Sheriff Clarence Dupnik was quick to blame talk radio, cable shows and political rhetoric for the shooting in Tucson yesterday. To what does he attribute the rise in bank robberies in his jurisdiction?:

Crime statistics over the last three years show a few consistent trends: Convenience store robberies, car thefts, arsons, and dog bites are on the decline – however, domestic violence reports, homicides and bank robberies have increased between 2009 and 2010.

I think we need look no further than this:

That makes about as much sense as Dupnik’s hypothesis.