It's a good question and it potentially could saturate the transponders out there in the airspace where it's not required. I think that the transponder requirement and hopefully the future transponder requirement will apply to certain types of airspaces, particularly controlled airspace. That's where we're integrating unmanned aerial vehicles and piloted vehicles today. But I think that through rigour when setting regulation going forward, it's a combination of the transponder requirement on the type of UAV, the purpose of the UAV, and the specific operating parameters in the area the UAV would be intended....
In uncontrolled airspace, at low flight levels, it's quite possible that UAVs would not require a transponder and could operate safely within the range of certain altitudes. It's a challenge of mixing all of the factors into regulation that affect not necessarily too much transponder equipage but certainly an adequate amount of transponder equipage as it gets close to controlled airspace that is shared or will be shared with piloted commercial aircraft and piloted private aircraft.