Hijackers' Interest in Crop Dusters Still Puzzles Terrorism Investigators By JOHN J. FIALKA, TOM HAMBURGER and GARY FIELDS Staff Reporters of THE WALL STREET JOURNAL WASHINGTON -- Seven months before he crashed an airliner into the World Trade Center, Mohamed Atta was asking crop dusters in Florida an odd question about their planes: How far can they fly? Such aircraft normally aren't flown long distances. But this summer, a Middle Eastern man who gave his name as "Sam" hung around crop-dusting firms in Saskatchewan, Canada, for days -- and asked the same question. And sometime before he was arrested ...