Hours as we await the next jobs number. Time now for global exchange. From london to berlin and washington come our bloomberg voices are on the ground with this mornings top stories. We begin with irans response to claims that the ukrainian passenger jet crashed in tehran was shut down. The head of the countrys Civil Aviation authority said this on state tv. Law, i said, based on the there is full coordination between our air defense and civil system. Are Aviation Personnel and defense personnel sit sidebyside, so it is absolutely impossible for such a thing to happen. Alix for more, we are joined by stuart wallace, Bloomberg News director for the middle east, joining us from washington. What is the latest . Stuart tehran came out with that, and they are sticking to its story. They continue to stick to that line despite just about everyone theye world saying that have reasonably good intelligence that there was at least a possibility that airplane was hit by a missile. That hasnt been