1.   Both were involved in high-profile incidents last semester that heightened racial tensions on campus.

2.   But the case has raised eyebrows if not heightened tensions.

3.   There are fears that the march will heighten racial tension.

4.   The move has heightened tension in the state.

5.   The plan will only heighten tensions between the two groups.

6.   These tensions were heightened by allegations made after the first-round most vocally by Macedonian nationalists that Albanians had perpetrated a massive multiple voting fraud.

7.   Speculation over possible Syrian-Israeli negotiations on the Golan Heights continued in March and served to heighten tension within the divided Israeli leadership.

8.   The organizers had strongly denied government accusations that the protest was an attempt to heighten political tensions.

9.   Although the policy debates are loudest in the public sector, where open admissions policies and budget battles heighten the tension, private institutions have not escaped the problem.