A TSA-approved luggage lock is simply a lock with the Travel Sentry logo. The Travel Sentry logo indicates to airport security personnel that a bag or case features a TSA-accessible lock. TSA has the authority to check any luggage that comes through their system; if you have a lock that is not TSA-approved, they can legally cut through it. TSA-approved locks can be unlocked and re-locked, which is convenient for both parties.\r