<p>For almost two years, intelligence services around the world tried to uncover the identity of an Internet hacker who had become a key conduit for al-Qaeda. The savvy, English-speaking, presumably young webmaster taunted his pursuers, calling himself Irhabi -- Terrorist -- 007. He hacked into American university computers, propagandized for the Iraq insurgents led by Abu Musab al-Zarqawi and taught other online jihadists how to wield their computers for the cause.</p>