91.   This time though, they were to take part as honored guests in the ceremony, though their exact role was a guarded secret.

92.   Unofficial reports have talked of three mobile batteries with four launchers each, but the actual number of missiles has been a closely guarded secret.

93.   Which troops and equipment are going where is a closely guarded secret.

94.   His revelation of the most closely guarded Bolivian military secret has caused considerable uneasiness among the military.

95.   His revelation of the most closely guarded Bolivian military secret has caused great uneasiness among the military.

96.   His residence in Jordan is a closely guarded secret, although sources say he is in Amman.

97.   His whereabouts have been a tightly guarded secret.

98.   Indonesian assistant team manager Iwan Setiawan was confident his players would face Korea but kept their strategy a closely guarded secret.

99.   Blatter also dismissed reports that his salary, a closely guarded secret until now, was four million dollars a year.

100.   But these are a closely guarded secret and seldomn witnessed by outsiders.