Considering the premise 'Unlike the earlier flights, the Flight 77 hijackers were reported by a passenger to have box cutters.', is 'There was a report that hijackers on one of the flights had box cutters.' a statement that stands on its own?
Unlike the earlier flights, the Flight 77 hijackers were reported by a passenger to have box cutters.###There was a report that hijackers on one of the flights had box cutters.