In the same vein, IF the plane had turned around, would that mean it's possible the Malaysian authorities are the sole holders of radar/tracking information? I haven't the know-how to track the very technical radar/tracking etc discussions, but if the garnering of that information is "owned back home" in "at home" airspace, perhaps some form of official face-saving might go some way to explaining this "disappearance", and they are bent on having a full explanation when they declare the facts? Remember, there are very fraught stakeholdings here.