In the last few years, intelligence analysts have noted that very few portable anti-aircraft missiles have been discovered in any of the thousands of Taliban and al Qaeda weapons caches found in Afghanistan. It is generally believed, at least by the mass media, that there are thousands of these portable missiles, particularly the Russian SAM-7 (and some later versions) on the black market. Maybe, but not really. Part of the reason is that it is easy to track a missile, used in a successful attack on military or commercial aircraft, to the country (or even factory) or origin. For that...