11.   Ahmed Qureia, the chief Palestinian negotiator, said calm could not be restored until Israel recognized Palestinian frustration with the peace process.

12.   Arab leaders gathering next week intend to speed up millions of dollars in aid to the Palestinians, reacting to Palestinian frustration and growing resentment among their own citizens.

13.   Baniel said he underestimated Palestinian frustrations.

14.   Ibrahim Hawamdi, a young Palestinian man watching the clashes in the West Bank town of Ramallah, agreed that Palestinian frustrations were still running high.

15.   Israel still controls the West Bank city, and its failure to withdraw from most of Hebron as promised has added to Palestinian frustration.

16.   Israel still controls all of the city, and its failure to withdraw from most of Hebron, as promised, had added to the growing Palestinian frustration.

17.   Israel still controls the city, and its failure to withdraw from most of Hebron as promised has added to Palestinian frustration.

18.   Last month, Amre Moussa, the secretary general of the Arab League, said in a Washington speech that Palestinian frustration was the main cause of terrorism.

19.   Last month, Amr Moussa, the secretary general of the Arab League, said in a Washington speech that Palestinian frustration was the main cause of terrorism.

20.   One reason that the rallies truly were hard to contain, however, was that they were fueled by Palestinian frustration over their own plight.