51.   The actions by the North Koreans have heightened tensions on the heavily fortified border, where the Cold War has never thawed.

52.   That Mario has become the spokesman for Texaco, a company A.J. has resented for snubbing him early in his career, heightens the tension.

53.   The case has heightened racial tensions here because Gammage was black, while the police officers are white.

54.   The episode also heightened tensions among Australia, neighboring Indonesia, and tiny Norway, as the three countries blamed each other for the high-stakes drama.

55.   The incident heightened tensions in Hebron and threatened to set off a new round of Middle East violence.

56.   The idea is probably to heighten the tension, or to convey some sort of testosterone rush.

57.   The latest outburst of violence has only heightened tensions in Hebron.

58.   The incident heightened tensions along the India-Pakistan border in the disputed region of Kashmir, just days before the United States began military strikes in Afghanistan.

59.   The increased smuggling also has heightened tensions between the two nations.

60.   The move heightened military tensions on the Korean peninsula.