11.   American officials say the killings only heighten tensions and inflame the fighting.

12.   And heighten the tension with the right music and sound effects.

13.   And if investors think wider surpluses will heighten tensions, that, too could send the dollar lower.

14.   As for presidential politics, the new contract clearly heightens the tension between Senate Majority Leader Bob Dole of Kansas and Sen. Phil Gramm, a Republican from Texas.

15.   As their marriage unravels, it becomes clear that race and the sense of otherness that often accompanies race have heightened tensions between them.

16.   Bob Toledo, then the offensive coordinator, made a daring call to heighten the tension even more.

17.   But it also heightened the tensions between the Catholic church and the state.

18.   But others place the blame for heightening racial tensions at least in part on Cochran, whose fiery closing argument suggested jurors send a message against racism.

19.   But there are plenty of unresolved matters that could still heighten racial tensions.

20.   During the first six weeks of school, tension was heightened, but school officials attacked it head on, he said.