41.   Erlandson said the flight school had arranged the briefings.

42.   Even without the required student visa, they went to flight school in Florida.

43.   FAA records showed that the plane was owned by the flight school, National Aviation Holdings Inc.

44.   FBI agent Kenneth Williams, who authored the memo in Phoenix warning about Arab students in flight schools, has also been extensively debriefed this week.

45.   Flight schools routinely require private pilots to fly with an instructor for at least an hour before allowing them to rent aircraft.

46.   Flight schools in Phoenix say the FBI never contacted them with any concerns about Middle Eastern students.

47.   FBI agents descended on flight schools, neighborhoods and restaurants in pursuit of leads.

48.   Flight schools and fuel retailers have seen their revenues plummet as business stopped over the past week.

49.   Fourteen are privately owned, and the remaining are used at flight schools to teach aerobatics, he said.

50.   For years, flight schools such as Richmor have been recruiting foreign students because tuition fees are much lower than in Europe.