Personally, my take on the "unpredictable security measures" is that what's really being said is "things are pretty chaotic here and we don't really have a well

Personally, my take on the "unpredictable security measures" is that what's really being said is "things are pretty chaotic here and we don't really have a well-though-out plan in place, but we're going to try to cover that up by claiming that the inconsistency is actually intentional".