I was chatting to a poor fella in front of me as the security debacle in front of us unfolded (or actually didn't unfold, there was complete inaction and disinterest from all staff) and he told me that it's his local airport and undoubtedly the worst one he has to use globally. He wasn't in the least surprised at the mess, and said this was the Manchester experience. (He wasn't flying BA so won't be able to add to this thread)