With the continuing discussion of using UAVs for a variety of purposes in the skies, the debate on the safety of interfacing unmanned aircraft from manned aircraft rages on.
The government, seeing a way to perform certain missions (drug surveillance, military, etc.) at a significant cost savings says that UAVs are safe and can intermingle with manned aircraft at no loss of safety.
The attached article demonstrates how well this concept works. Let's remember that both the C-130 and the Army MQ-9 were military aircraft.
Military Cargo Plane Struck by Drone