Someone explain the logic process here

So these guys hang our flag upside down and burn them on a regular basis...fine. There is one report of a Koran in a toilet and all hell breaks loose? There is rioting in Afghanistan and they are killing each other over of it? Can someone explain that to me? Then the Saudi's come out and say that they are pissed so Condoleezza says "there will be prompt action" if the charges are proved true. When did we become the Saudi's bitch? Did I miss that memo? I mean I know we need their oil but this is ridiculous.

Nine killed as Afghans rage at US