The use of a drone to kill al-Qaeda's second-in-command in Pakistan, confirmed on Tuesday by U.S. officials, is good news that has nonetheless provoked a diplomatic protest by Pakistan. The country's position is understandable, and doubtless its posturing is necessary for domestic consumption. But it does not alter the fact that Pakistan is either unable or unwilling to act against terrorists in its lawless tribal lands and, though they occur in a foreign country, that Washington's actions are defensive in nature.
Abu Yahya al-Libi was a global jihadi figure who incited attacks on Western targets and served a critical propaganda role for al-Qaeda. His apparent death follows several similar drone strikes against senior al-Qaeda leaders, including Atiyah Abd al-Rahman, that have seriously diminished the terrorist group's capability and, frankly, have made the world a safer place. What is more, the use of the unmanned stealth weapons has both preserved the lives of U.S. servicemen and women and resulted in limited civilian casualties.
Louise Arbour, the former war crimes prosecutor and Supreme Court of Canada justice, wrote recently in Foreign Policy that the use of drones "stretches legal boundaries to the breaking point and alienates people in Pakistan." In calling for the rules for use of strike drones to be "clarified," Ms. Arbour expressed concerns over the "very real risks to civilians." There is indeed a need for a clarification of the rules. It would be folly to believe that the proliferation of the technology is without implications for international law and policy.
But any such debate must be built upon some pertinent facts. Strike drones are surgically targeted, and those killed are generally not good people (there is always the unfortunate risk of exceptions when terrorists hide among civilians).
In the case of the latest attack, American officials say Mr. Libi was the only person who died. Local tribesmen dispute this, saying others died, but they confirm no civilians were harmed. The same can hardly be said of the consequences of U.S. inaction in the face of al-Qaeda's threat. This operation was then, by any reasonable measure, a success. Ms. Arbour and others concerned about drone wars need to reflect on the question of proportionality.