41.   Rifts between the governments received generous attention in the press, and heightened tensions.

42.   Reports of the abduction in Europe by Hezbollah guerrillas of an Israeli reserve officer further heightened tension.

43.   Security tensions were heightened by a rocket attack on Monday at Narita airport outside of Tokyo.

44.   Some leaders try to sweep the entire issue under the rug, which often serves to heighten the tension.

45.   Spurring the latest gains was speculation that internal strife within Iraq would heighten regional tensions.

46.   Some sex researchers believe that a vow of celibacy, if taken in earnest, can later heighten sexual tensions.

47.   Tensions were heightened over a new case of anthrax at NBC News in New York.

48.   Tensions are heightened over Kosovo.

49.   Terrorist threats, including a string of letter bombs this week, further heightened tensions.

50.   The accounts have heightened tensions between Japan and its neighbors.