    Sentence 1: Al Qaeda , the terror network led by  Saudi-born Osama bin Laden and blamed for the  Sept . 11, 2001, attacks , has been linked to both    cases.         Sentence 2: Al-Qaida , the terror network led by  Saudi-born bin Laden and blamed for the Sept .  11, 2001 attacks on the United States , has been  linked to both cases .    