51.   Norwegian expert Asbjorn Eide said he was very concerned over the incident in Texas, but that the U.S. authorities are acting to prevent a recurrence.

52.   Now we must act to prevent the use of disease as a weapon of war and terror.

53.   Police sources said they acted to prevent what they claimed was planned violence by Bulatovic supporters.

54.   Police sources said they had acted to prevent violence against Momir Bulatovic, a close ally of Yugoslav President Slobodan Milosevic.

55.   Police sources, speaking on condition of anonymity, said they had acted to prevent violence against Momir Bulatovic, a close ally of Yugoslav President Slobodan Milosevic.

56.   Police said it acted to prevent the clash between the two factions.

57.   President Bush said he would act to prevent a strike if the talks failed.

58.   President Fidel Castro said the downing of two small planes by Cuban interceptors could have been avoided if the United States would have acted to prevent it.

59.   Since the crisis began, police have acted to prevent direct contact between journalists and the rebels, fearing the rebels would gain a propaganda advantage.

60.   Saying its fragile democracy and economy were at stake, the Macedonian Security Council said that its army would act to prevent the illegal entry of any more refugees.