Superfreakonomics

Superfreakonomics is Stephen Leavitt and Stephen Dubner's 2009 sequel to the wildly interesting 2006 Freakonomics. They discuss the economics of prostitution, how tracking bank fraud can also help you track down terrorists, and how the number of automobile deaths went up up in the months after September 11th, not because people were afraid to fly, but (as you find if you look at the numbers more closely and notice that they were clumped in the northeast and showed a larger-than-usual number of alcohol-related accidents) because of post-traumatic stress.  Currently, they’ve followed up with Think Like a Freak, about the metaproblems of thinking outside the economics box, which is in the to-be-read pile.