June 24— The Qatari man designated an enemy combatant by the Bush administration was planning another Sept. 11 attack, sources told ABCNEWS. Ali Saleh Kahlah Al-Marri, 37, was deemed an enemy combatant by the Bush administration on Monday after officials said he was positively identified by an al Qaeda detainee as being part of a planned second wave of terror attacks on the United States. Government officials said they believed al Qaeda's top leadership sent Al-Marri to the United States to coordinate a new round of attacks. "Al-Marri was sent to the United States as a facilitator for other al...