in your reply to any agency
that will not disclose the area of operation, I always add the statement: It is a condition of my insurance carrier that they are advised 30 days in advance of any visit to any country on their watch list.
The also add that they reserve the right to increase the insurance premium for this perio of time.
Remember ACASS doe not provide ANY insurance for you whilst on duty for them....not sure of the legality of this, in respect of due care and attention.