11.   Officials are concerned, though, because the city has no property tax for operating costs, only a sales tax.

12.   Officials are concerned that the current fighting could spread to their soil or send tides of refugees into Georgia.

13.   Southern California officials are concerned that some anti-terrorism measures could seriously disrupt commerce and leave them with added expenses.

14.   Such developments have Federal Reserve officials concerned rising labor costs could filter through to consumer prices.

15.   That has concerned officials in Washington, who worry about stability here and in other Andean countries.

16.   That is what has some state officials concerned.

17.   The bidi fad particularly concerns health officials and opponents of smoking because they say the Indian cigarettes seem tailor-made to attract young smokers.

18.   The lumber industry disputes those findings, but the presence of arsenic in treated wood concerns environmental officials.

19.   The possibility of tuberculosis being passed from domestic to wild herds concerns wildlife officials.

20.   The problems have Pentagon officials particularly concerned about whether the system can accurately locate mobile anti-aircraft weapons, a growing threat around the world.