The airspace over Iraq must be getting a little crowded with all the UAV's over there serving this user or that. I understand that the USAF wants a review over 'who controls what' -- sounds like they're asking for a latter day Key West Agreement.
As the UAV's tasked by the ground troops gain in size, range & payload they're going to begin 'bumping into' USAF assets.
Already happening to a small degree. And yes the USAF is b*tching (but what's new!).
The number of The RQ-11 Raven's being used is quite impressive (and being used very effectively).
Outside of seeing one of those Little Birds being flown by the Blackwater guys....sighting seeing for UAVs has become quite the past-time event when outside the gate.