Then, the job in North Waziristan done, the C.I.A. officers could head home from the agency’s Langley, Va., headquarters, facing only the hazards of the area’s famously snarled suburban traffic.
It was only the latest strike by the agency’s covert program to kill operatives of Al Qaeda, the Taliban and their allies using Hellfire missiles fired from Predator aircraft controlled from half a world away.

By increasing covert pressure on Al Qaeda and its allies in Pakistan, while ground forces push back the Taliban’s advances in Afghanistan, American officials hope to eliminate any haven for militants in the region.
One of Washington’s worst-kept secrets, the drone program is quietly hailed by counterterrorism officials as a resounding success, eliminating key terrorists and throwing their operations into disarray. But despite close cooperation from Pakistani intelligence, the program has generated public anger in Pakistan, and some counterinsurgency experts wonder whether it does more harm than good.