On February 16, in Nairobi, Kenya, Abdullah Ocalan, the founder and supremo of the Kurdish Workers' Party (PKK), was captured and promptly sent to Turkey to face trial. As the main engineer of a Maoist guerrilla organization, he stands accused of crimes involving the death or wounding of some 30,000 people, and untold economic damage, mostly in Turkey, but also in Iraq and Germany. His arrest raises delicate questions: the political and legal aspects of international counterterrorism; the likely impact on Turkey's internal counterinsurgency campaign; the most appropriate treatment of Ocalan; and the larger geopolitical implications.