21.   The terror attacks using hijacked airplanes in the United States should make U.S. airports tighten controls, the body that groups airlines worldwide said Wednesday.

22.   There was no information about when an attack might occur or the possibility of terrorists crashing hijacked airplanes into buildings, officials said.

23.   Venezuelan authorities said Monday that eight hostages who were aboard a hijacked airplane that ended up in Colombia would soon be released.

24.   When terrorists slammed their hijacked airplanes into the World Trade Center, they attacked more than a symbol of America.

25.   When terrorists slammed their hijacked airplanes into the World Trade Center, they attacked more than America.

26.   Women, children and ailing passengers were freed from a hijacked Sudan Airways airplane Tuesday two hours after it landed at Stansted Airport northeast of London.