Basically MANY of the Iraqi shanangans were SO INTERTWINED with the Gov't of Syria, that you would be able to call these projects Syria/Iraqi and not Iraqi/Syrian.
Sadaam set up a command and control center to run the insurgency from Syria BEFORE THE WAR EVEN STARTED. All of this is 'known' in the open source intel sphere, but for dimplamtic reasons are not YET echoed in the reality of the rhetoric.
We are STARTING to advance the rhetoric... I beleive by year's END there will be some MAJOR 'resoluiton' to the issue... MOST LIKELY the catalyst will be Syria's continuing direct and substantive involvement and support of the current 'insurgency' in Iraq.