call 100
as you seem to "know" things why has the hangar taken so long to put up then?
If they went to Cov or Wolverhampton there is less security than there is at BHX which is laughable but true.
I think they would be better off keeping it BHX but moving it to the restricted area out of public view, maybe where it used to be 15 years ago. If they have signed contracts its a small matter of changing the location as its only paperwork at this time I have seen no ground work etc re the hangar??