FYI Andy, this is NOTHING new, not even the most retarded and naive Irani govt official would raise an eyebrow over that. Or do you think only the US supported Iraq in the 80s Iran-Iraq war?
Iran/persian - arab world relations (vying for Big dog status in ME and the Gulf) and shia-sunni relations of like...the last thousand years of history (subjugated the former in both scenarios in most of that time) havent been exactly cosy, just FYI