UAVs not very successful?

I am not exactly sure how anyone comes up with these numbers, because it is often hard to tell whether someone is an insurgent, even after they are captured .....

The foreign policy community’s favorite counterinsurgency adviser, or at least their favorite Australian one, David Kilcullen, told lawmakers last week that the drone strikes targeting Al Qaeda and Taliban fighters in Pakistan are creating enemies at a far faster rate than its killing them. According to statistics he provided, the success rate of the drone bombing campaign is extremely low: just 2 percent of bombs dropped have hit targeted militants. The other 98 percent? Those killed noncombatant Pakistani civilians, he said.

http://www.dodbuzz.com/2009/05/11/drones-hardly-ever-kill-bad-guys/