Baghdad, 23 May - The number two of the al-Qaeda network, Ayman al-Zawahiri, visited Iraq under a false name in September 1999 to take part in the ninth Popular Islamic Congress, former Iraqi premier Iyad Allawi has revealed to pan-Arab daily al-Hayat. In an interview, Allawi made public information discovered by the Iraqi secret service in the archives of the Saddam Hussein regime, which sheds light on the relationship between Saddam Hussein and the Islamic terrorist network. He also said that both al-Zawahiri and Jordanian militant al-Zarqawi probably entered Iraq in the same period. "Al-Zawahiri was summoned by Izza Ibrahim...