51.   Washington is hoping the fighters may yield clues in the search for bin Laden.

52.   Maralit said an examination of the bomb materials would yield valuable clues.

53.   On Monday Navy crews found a new area of wreckage that includes parts of the forward luggage hold and that investigators hope will yield fresh clues.

54.   Rumsfeld said an initial round of information can always yield clues that can later be connected to other intelligence material found elsewhere.

55.   Search teams are trying to retrieve the front portion of the jetliner, believing it will yield clues to the cause of the crash.