If we are unable to locate the passenger, then the supervisor is called over to cut the lock. After screening the bag, the lock pieces are taped together and placed in the bag with a TSA notice. Cutting a lock is the absolute last option, and one that no TSO wants to exercise.
I had my lock cut in a trip to Chicago. I was so angry.. But I guess I was thinking too much about myself. Keep up the good work, TSO.