My understanding of this whole thing of armed drones, such as the Predators, is that they are more precise than the CF-18s—they can target individuals—but that when there are no ground troops, there is not necessarily good information; there is mis-targeting, and there can be civilian deaths; that wherever we don't have ground troops, it's especially useful to have the unarmed drones providing intelligence; and that the Predator-type drones are a big liability in terms of humanitarian and political costs when they mis-target.
On December 2nd, 2014. See this statement in context.