You can protect the content of your case with this high quality TSA lock.
The TSA Lock can be used on all types of dry (HPRC) cases.
More info: What is a TSA approved lock?
Transportation Security Administration or TSA approved luggage locks are locks you put on your suitcase which have a master key available to the Security Officers in airports. If at an airport, and a security person needs to inspect your suitcases with TSA approved luggage locks, they need merely use the master key to open the lock.
While you can use a normal lock to lock your suitcase, the security staff in airports has the right to cut it off. BUt when using a TSA approved lock, they will not need to cut it off. They can just open it with their master key and close it again after inspection.