This is an article from Slate, which discusses the relationship between the new Pakistani government and the US with respect to drone attacks on militants in Pakistan. Basically the article asserts that Pakistan acquiesces in the attacks while protesting loudly. The ratio of ‘bad guys’ to ‘good guys’ killed is acceptable to both parties. Drones are proliferating world wide. Drones ability to stay in the air for long periods makes them effective in tracking targets.