rationalskepticism.org

It's like any other technology, the morality is dependent on those who wield it. I think that so far it's justified, despite civilian casualties. I don't mean to sound callous, but if you allow militants to take over your village then you put yourself in harms way. I do not believe that in general these militants are an occupying army, forcing themselves on an unwilling civilian populace. The civilian population is complicit, they are supporting and protecting the militants and therefore a degree of collateral damage is acceptable.

That said we should not put too many eggs into the robotic basket. There is no substitute, even on today's high-tech battlefield, for boots on the ground. Skynet, anyone?