I need you to carry out a sensitive operation later today.
The whole business of tracking down the war criminal Volyova has always been a front for a much more sensitive operation.
A black file is generally information concerning very sensitive operations.
In addition, he recommended that a new annex be constructed for the most sensitive operations.
By removing him from his station we jeopardize a very sensitive operation.
Andrews had worked other things, been involved in other sensitive operations.
The attack was considered to be especially worrying because the bomber managed to breach security assigned to potentially sensitive operations.
'It is the most sensitive operation I have ever been presented with.'
She is an intelligence officer involved in a number of sensitive and sometimes dangerous covert operations overseas.