Wheels within wheels..
Iran is the new 'bad guy' - Syria is in the way. Turkey is dependant on US and NATO military aid. Good guys need to know how switched on is Syrian AD capability. Put feelers out. Feeler is shot down. Hilary bumps gums. Behind scenes, Turkey encouraged to engage in 'Kick off'. Russkis watching eyes wide open..........
Tonkin non incident comes to mind.