why would you think that we would have a mole in the Irani chain of command to shoot down a passenger airliner?
It was shot down by a small group of common ragheads manning a Surface to air missile battery who did not know how to distinguish a passenger airliner from a fighter jet so they fired out of utter stupidity and itchy trigger fingers....
The image of the aircraft on a radar screen should have been obvious as a jetliner is substantaially larger than any fighter jet..