Yes, theives will always find a way to steal, no matter what you do. I find the TSA lock on my new Samsonite luggage to be very difficult to defeat short of damaging the container itself. Now if some luggage Gorilla manages to get his hands on a TSA key, well, even banks still get robbed these days don't they? Ultimately, there is no truly secure way to ship what you think you need anywhere, so you must accept that certain conditions are simply inevitable, and take your chances like everyone else. I've had more than my share of things lost, stolen or damaged by the USPS, UPS, Fed Ex, and DHL enough to understand that they are no better.

Let me ask you this, what other choice do you have, and isn't some form of protection/security better than none at all?