I suggest you cast your eyes toward Iran and other oil rich countries who hate the American way of life if you want to keep UAV bomb threats in check
One of the reasons for using UAVs is to keep the risk to human life (ie pilot and aircrew) to a minimum.
It has been proven time and time again that those who hate the western way of life are more than willing to sacrifice their own lives for what they percieve as a greater cause. They don't need UAVs to deliver a payload onto target. They will just use a human pilot.