I would really, really doubt this. My assumption is that they either:
1. They have statistics that they have to keep up, and having a ding like "a crime was committed on your watch" isn't a good thing, so they try to avoid it, or
2. Classifying it as a crime versus an accident comes with a load of paperwork and hassle for everybody involved that no one wants to do.
I really don't think this was malicious in the manner you describe.
Yes, but I also know government workers. For every recorded instance of some theft ring, there are undoubtedly thousands of unrecorded instances of a TSA agents (or, really, any non-SES government worker) downplaying things or subtle manipulating situations to get out of paperwork.
1. They have statistics that they have to keep up, and having a ding like "a crime was committed on your watch" isn't a good thing, so they try to avoid it, or 2. Classifying it as a crime versus an accident comes with a load of paperwork and hassle for everybody involved that no one wants to do.
I really don't think this was malicious in the manner you describe.