Note the shape and the speed of this thing. It is flying faster than the plane itself. http://www.huffingtonpost.co.uk/201..._n_6112630.html?utm_hp_ref=uk-tech&ir=UK Tech
probably another US drone RQ-170 or maybe Iranian modification of it... http://rt.com/news/204939-iranian-version-us-drone/
I heard on NPR last night that the Iranians had captured a drone, reversed engineered it and are flying their own now. Clever those Persians. You have to watch a nation that's been around since something something B.C.