NSA surveillance was used to find Hassan Ghul, an agent of al Qa'ida, and send a drone to kill him.

I would not criticize the US government for spying on the foreign communications of specific people for specific reasons in order to catch people such as Hassan Ghul, or thwart their plans. However, spying on all of us is a different issue. It has nothing to do with finding someone in Pakistan.

Meanwhile, drone attacks are bad for other reasons.