An even more devastating terrorism charge could be laid on Iran's doorstep if intelligence reports linking Iran to al-Qaeda are confirmed. Insight has learned of new links between top Iranian intelligence officials and the al-Qaeda leadership that suggest direct Iranian government involvement in the Sept. 11 attacks on the U.S. mainland. Documents and information provided to this magazine by a recent Iranian defector, if confirmed as authentic, could open a new front in the war on terror. The defector, Hamid Reza Zakeri, says he worked in the intelligence office of Supreme Leader Ali Khameini and personally handled security at two...