"Women in burqas or veils are allowed to show their face discretely to a woman official."
Not good enough. If I turned up at Gatwick masked up and offered to "show my face discretely [only] to a man official." I would (quite rightly) be given short shrift. Just what it is with these people that they believe the rules that apply to everybody else do not apply to them because of their ridiculous foibles?
I have no idea trt and could not care less what they do with them really - does that answer your unnecessarily sarky question good enough ??? Do hope so !!!