61.   The United Nations is sending daily convoys to the displaced but has warned this will not be enough to prevent a tragedy this winter.

62.   U.N. and Colombia human rights monitors say the military could have prevented the tragedy, which occurred when a rebel mortar struck a church packed with people.

63.   U.N. and Colombia human rights monitors say the military could have prevented the tragedy, which happened when a rebel mortar struck a church packed with people.

64.   We ask them because we believe that better planning would have prevented the tragedy.

65.   He said the TACAS could measure distance between aircraft, speed and altitude and might have prevented the tragedy near New Delhi.

66.   Army soldiers who rushed to the blood-soaked station with bomb experts detected a third bomb and defused it quickly, preventing another tragedy.

67.   Who can prevent this tragedy?

68.   Police and officials also found themselves in the dock, but the momentum created by Heysel had more to do with preventing future tragedies, than with retribution.

69.   Smith told the SAPA news agency that quick thinking by the drivers of two tour buses prevented further tragedy.

70.   Soldiers who rushed to the station with bomb experts detected a third bomb and defused it quickly, preventing another tragedy.