Al-Qaeda operative Mohammed Haydar Zammar is frequently seen with future 9/11 hijacker Mohamed Atta starting this year. According to Time magazine: “Beginning in 1997, neighbors of Atta’s would often see Zammar carrying boxes up to the Egyptian student’s second-story walk-up. US investigators believe he may have persuaded Atta’s Islamic study group to offer its services to al-Qaeda around 1998.” [Time, 7/1/2002] German intelligence begins heavily monitoring Zammar in early 1997 (see March 1997-Early 2000), but it is unclear when it first takes notice of Atta.
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