From Webster re: paranoia
2 : a tendency on the part of an individual or group toward excessive or irrational suspiciousness and distrustfulness of others
I think in the initial aftermath there were instances falling within that definition (NW at MSP etc.), and I'm still not sure whether having F-16s blatting about is a Good Thing. But until (if ?) the current situation is resolved one way or another, suspicion and distrust are understandable
and prudent. It would be nice were everyone to wear a tag stating 'normal', 'nutter', 'copycat' or 'terrorist' but since they don't, if they start acting up I'd rather CC assume the worst.
Of course we all interpret excessive and irrational differently. Not being allowed to take a leak on board qualifies as both IMO.