TSA Accepted Luggage Locks 25% of airport thefts happen in baggage handling and pick-up area at airport where unlocked luggage becomes the most target. A luggage lock is necessary to deter easy access to our belongings. Each TSA accepted lock has an identifying red diamond mark that shows it can be opened by the master key which only the TSA, CATSA and other security agencies have. It allows your luggage to be unlocked, inspected and relocked by security authorities during security screening, without damage. WHY CHOOSE A TSA LOCK? TSA officers screen every passenger's baggage before it is placed on the plane. At their discretion, they choose to open a passenger's luggage for closer inspection. If the luggage is fitted with any lock other than those approved by the TSA, they will destroy whatever lock is fitted to gain access.