VIKTOR BOUT knew, long before his plane lifted off from Moscow, that they meant to snatch him. For years he had hunkered down in the Russian capital, making only rare forays abroad. Western spies, the United Nations and do-gooder activists were after him. They said that he had smashed arms embargoes and struck deals with a remarkable axis of ne’er-do-wells: supplying weapons and air-transport to the Taliban, abetting despots and revolutionaries in Africa and South America, aiding Hizbullah in Lebanon and Islamists in Somalia. He also found time to supply American forces in Iraq, perhaps al-Qaeda too, and maybe even Chechen rebels.