11.   Other hijackers had ties to Egypt and Saudi Arabia, officials said.

12.   People close to the Saudis say, however, that another concern is whether the hijackers had significant Saudi ties.

13.   She gave no indication that the hijackers had other weapons, such as guns or pepper spray, the source said.

14.   That meant the hijackers had to study only one set of instruments to learn how to fly either plane.

15.   The authorities have not determined what help the hijackers might have had from people living in the Boston area.

16.   The hijackers had only their duffel bags, never bothering to buy furniture.

17.   The hijackers had no computers, no laptops, no storage media of any kind.

18.   They cautioned, however, that the hijackers also had ties to other groups and that it was too early to know the shape of the conspiracy.

19.   Those left on board realize to their horror that the hijacker has no plan for landing the plane.

20.   What kinds of visas each hijackers had.