"While it was not the first country where the United States used drones, [Pakistan] became the laboratory for the targeted killing operations that have come to define a new American way of fighting, blurring the line between soldiers and spies and short-circuiting the normal mechanisms by which the United States as a nation goes to war."
Nek Muhammad knew he was being followed.
On a hot day in June 2004, the Pashtun tribesman was lounging inside a mud compound in South Waziristan, speaking by satellite phone to one of the many reporters who regularly interviewed him on how he had fought and humbled Pakistan's army in the country's western mountains. He asked one of his followers about the strange, metallic bird hovering above him.
Less than 24 hours later, a missile tore through the compound, severing Mr. Muhammad's left leg and killing him and several others, including two boys, ages 10 and 16. A Pakistani military spokesman was quick to claim responsibility for the attack, saying that Pakistani forces had fired at the compound.