Foreign governments are <A HREF="http://news.zdnet.com/2100-1009_22-5967532.html?tag=zdnn.alert">the primary threat</A> to the U.K.'s critical national infrastructure because of their hunger for information, a British government agency said. The National Infrastructure Security Co-ordination Centre said the most significant electronic threats are content-based, targeted, Trojan horse email attacks from the Far East.