Correct me if I'm wrong, but I would venture a guess that theft by postal employees at any post office (or other USPS facility) is considerably less than by the employees of any of the commercial shippers out there. When you visit your local post office, you will notice that there are 1 way glass windows in all of the areas close to the ceilings & catwalks for Postal Inspectors to watch the goings on inside. Just my opinion.