21.   Drought heightens tensions in the town, whose residents blame the aborigines for their suffering.

22.   Even the presence since early January of Taliban and al-Qaida fighters captured in Afghanistan has not heightened tensions, according to officials.

23.   Fog and endless daylight in northern Norway serve to heighten tensions that already run deep.

24.   Florida officials have further heightened tensions by vowing to aggressively check every shipment of foreign produce arriving by truck for possible diseases, chemical residues and insects.

25.   For the second day, Yugoslav forces shelled villages in northeast Albania Thursday, heightening tensions along the main crossing point for refugees fleeing from Kosovo.

26.   Heightening the tension are charges of racial bias in an increasingly diverse part of the Valley.

27.   Heightening tensions further is a spiraling arms race.

28.   His arrest would be certain to heighten political tensions both in Tabasco and in Mexico City.

29.   It can exacerbate bureaucracy, heighten political tensions and consume enormous numbers of hours.

30.   It can exacerbate bureaucracy, heighten political tensions and consume many hours.