21.   But several Republicans reiterated their concerns on Friday about deposing witnesses, a sign that at least a few senators in the party are nervous about prolonging the trial.

22.   But several council members expressed concern on Tuesday over the apparent lack of details for that plan, which Bloomberg administration officials say is just in the preliminary stages.

23.   But mainstream protesters say they aimed to open up such conclaves, not end them, and they expressed concern on Wednesday that terrorist events might force a cancellation.

24.   But Shelby expressed little concern on that count.

25.   But security is a prime concern on these systems which handle natural gas supplies for millions of people.

26.   But the biggest concerns on the pitching staff involve Nomo and Martinez.

27.   But the primary concern on the mind of Rich Thoman, then chief executive of Xeros, was the future of the families that had lost someone.

28.   But U.N. inspectors are focusing special concern on the less visible but very perilous chemical and biological weapons and the delivery systems Baghdad may be planning for them.

29.   Carter said that he met with high-level Bush administration officials before making the six-day trip and that he had asked about specific US security concerns on Cuba.

30.   Clearly, pesticides in the hands of Palestinian suicide bombers create concerns on a much smaller scale.