21.   The call seems to reflect his increasing frustration and skepticism about U.S. mediation efforts in the Middle East peace talks.

22.   U.N. human rights officials have also been touring suspected mass grave sites in recent days amid increasing frustration among Bosnians over the lack of information about the missing.

23.   Damascus too has expressed increasing frustration with the talks.

24.   Delegates have been voicing increasing frustration over the slow pace of events coupled with a failure to agree on the set-up of a planned national council, or parliament.