Reliable stats are hard to come by, but Delhi, Johannesburg, JFK all have bad reputations. For a long time Kuala Lumpur had a gang working with the X-ray guys to tag juicy targets, but they were busted a while back.

Problem is, cling wrap won't stop a determined thief, it'll just make the theft evident -- unless they just grab your whole bag instead.

> Problem is, cling wrap won't stop a determined thief

The point is just to make your bag more effort than the less-protected one next to it.

Is there an insurance company that will pay out if the seal is broken? Probably not, since then the customers would break them themselves to claim theft.

Every airport I've been to in Brazil had some saran wrapping booth. The salespeople can be quite pushy as well at those...