The New York Times' At War Blog is usually worth reading. It's where CJ Chivers does a lot of posting, and Chivers is a journalist I respect and follow as closely as I can. A recent entry, penned not by Chivers but by another Times blogger named Tim Arango, is called " Weapons Retrieved in Iraq Point to Iran ." In intent, it is similar to a series by Chivers that is one of the best pieces of war reporting I've ever read. If you haven't read it, it's worth reading from the beginning*. The $.25 version is that Chivers used social media and the expertise of professional weapons geeks in the following way: 1.) he took photographs of the debris left by munitions in Libya 2.) he used e-mail contacts with an expert who 3.) used Facebook to tap into a network of ordinance experts to 4.) identify the origins of the munitions, which provided strong evidence that Qadaffi used cluster bombs in Libya. Arango, unfortunately, relied on a different sort of expert with a ...