The question to ask is, why was security not running to the spot the instant it was moved? Good camera systems blow the whistle, when they are moved, or significantly obscured. However, if no audit presence is percieved, then the mice will play. If it happened more than once, then their whole system is really about show, not effectiviness.
Are people are being judgemental here ?- we need roid pumped goons to shift our suitcases efficiently- its not a pleasant job. Those with tarnished records would get at least 20K less under 'workchoices', so the airport can't be too selective, plus they can be put on the 'bad' shifts. Anyone with a habbit- would not be working as a baggage handler, at least in .au. You can bet other systems are in place, to minimise risk.
On camera systems, experience tells me they get moved when:
1) bosses sound off about recalcitrant workers taking a smoko, or going a tad slowish - ie used for other than security reasons
2) Candid footage - like sex in a stairwell, or smoking in a non-smoking area- when the participants did not know there was a camera about, or get warned about using someone elses car spot.
3) Security consultant wants to manufacture a reason to extend a contract.
4) These goons already know the blind spots - very unlikey they want to attact attention.
5) Someone reprimanded for ripping off a tag - if you cant steal, then at least you can cause a routing malfunction of a toff you may not like.
Now if someone got dressed up in an animal suit, then relationships must be at an all time low. As usual, secrecy clauses probably prevent lowly paid baggage scum talking to the media about lousy conditions and lousy pay.
And in an odd twist, some of these goons get performance bonuses for identifying suspicious items. It does sound bad, but the situation is carefully risk managed. Now if only I could find to links where American baggage handlers banish boredom - enhanced 'gravity' tests of fragile items etc