I purchased some TSA approved "Travel Sentry" security locks last year when they first came out (4 digit combo locks that have the special key for the TSA to open them up if they want to inspect the bag).

Sent an email off to the TSA today because they've not been doing a good job at either GEG or LAX with closing the lock correctly at either LAX (terminal 3, Alaska) or GEG. Two of the locks have been lost because they fell off in transit in the open position, and I've had to go back to the airport a couple of times to have them open the lock with the key and reclose it correctly so that I can open it again with the combination.

I just re-ordered some more TSA approved locks, but this time through eBags. I'm hopeful that they'll be a bit more sturdy.

And I'm also hopeful that the TSA will respond with an indication of retraining at both LAX and GEG with respect to closing the locks after they've been opened by them.