21.   Monday, Chin said that although the prosecution memo would remain secret for now, the legal arguments should take place in public.

22.   Plans for the book were kept secret for fear al-Fayed would launch legal action to stop its publication.

23.   Plans for D-Day begin well in advance, but the actual date and time are kept secret for obvious security reasons.

24.   Thailand kept that data secret for much of this year.

25.   The article was based on a report, prepared by Charles G. LaBella, a former Justice Department investigator, that had been kept secret for two years.

26.   The details of his case have been secret for too long.

27.   The details of their arrival in Atlanta are being kept secret for security reasons.

28.   The existence of the hostages in Israel was kept secret for many years.

29.   The partners in a merger may want to ensure that the encrypted messages they exchanged about tactics and business strategies remain secret for a decade.

30.   The routes of the trucks carrying the material and other details are kept secret for security reasons.