Senior U.S. official : `` This is not the kind of weapon a couple of guys are going to pull out of a garage and fire , '' he said . Radar saw surface-to-air missile system track aircraft . A sophisticated surface-to-air missile was more likely used , experts say . Comment: The sophisticated weapon would require professional soldiers , expert says .
Senior U.S. official : Radar saw surface-to-air missile system track aircraft . A sophisticated surface-to-air missile was more likely used , experts say . Comment: The sophisticated weapon would require professional soldiers , expert says .