Samarra: Qui Bono?

The question is Machiavelli's and is his advice to anybody who wants to know who did something in politics (including war) and why. He suggested you ask "cui bono?" - "who benefits?" I have been asking this question about the Samarra bombing and am writing a multipart part series suggesting the reply. The first installment is here Samarra: “Cui Bono” Update 1: Second installment uploaded:Samarra: “Cui Bono” markfromireland