The proper thing to do, is to let them be armed and train them to mount an effective counterattack. That is effective. Treating them as if they are your sheep, to tag and keep track of, will only get them killed sooner.
> ... let them be armed ...
Last I knew, contractors could hire bodyguards, but
weren't themselves allowed to be armed. If so, this
ain't workin'.
And then you state the logical back-up to terrorists just mounting a home invasion to kill on site. Anything other than Iraqi bodyguards at this point. At least in one of the Saudi attacks a private security company took out a bunch of the thugs.