1.   It was later discovered that the hijacker was unarmed.

2.   The FBI say the hijackers were very likely to have been disguised.

3.   Although Turkish military spokesmen had implied on Friday that all the hijackers were in custody, it turned out Saturday morning that only four had surrendered.

4.   At least eight of the kamikaze hijackers were Saudis, as is their alleged mastermind.

5.   Bin Laden also suggested that not all the hijackers were aware that theirs was a suicide mission, the official said.

6.   A number of aviation experts agreed, saying the hijackers must have been experienced pilots.

7.   But if there were no hijackers in the cockpit and none visible in the passenger cabin, where were they?

8.   But the hijackers were more interested in escaping as well.

9.   Earlier in the day, there were hopes that the hijackers were simply Algerians trying to flee the country.

10.   Early Thursday morning, the hijacker was under arrest in Barcelona, and the passengers were gathered inside the airport terminal.