41.   Details of his trips are normally kept secret for security reasons.

42.   Details of the offensive were kept secret for operational reasons.

43.   Exact travel details were being kept secret for security reasons.

44.   Experiments often were kept secret for decades to avoid bad publicity, the panel said.

45.   Former ACB chairman Alan Crompton says the matter was kept secret for three years because it was regarded as an internal disciplinary matter.

46.   He had kept the incident secret for a month and initially denied knowing of her whereabouts.

47.   He kept two names secret for the time being, a practice usually reserved for political considerations.

48.   His condition was revealed Sunday after being kept secret for two weeks.

49.   His death remained secret for some time, leading to speculation that he was killed by opponents within the RPF.

50.   Just where was being kept secret for now for security reasons.