Re: There's still the old problem
The Robin Hood Airport case was a particularly difficult one. Whether one takes a bomb threat seriously is heavily conditioned by factors such as whether you have public safety responsibilities or whether you have experience of an environment where bombing were sufficiently frequent to make one inclined to take them seriously.
I've mentioned before something that highlighted to me the contrast between someone with NI experience (me) and someone with just English experience (facilities management). One of the other tenants in a glass-walled business received occasional bomb threats. They were taken sufficiently serious that the building would be evacuated but not, inmy view, seriously enough.
FM's idea was that people would walk round the end of the building, following a path very close to it, to the assembly area on the opposite side of the building to our exit.. Mine was that I'd exit the building and proceed in as straight a line as possible as perpendicular as possible to the facade until I'd reached a safe distance and if you want to walk past a glass wall with, potentially, a bomb inside it you're welcome. I'd seen what a bomb detonated a few tens of metres from my place of work had done and heard accounts from those who'd been there at the time.