Also you need to keep organized crime out of airports. Some percentage of lost luggage is actually stolen luggage. Misrouting is also another large percentage. In the US unclaimed lost luggage ends up in some gigantic warehouse in Alabama.
Ex-employees/employees abusing their access and knowledge to steal:
https://abc7ny.com/post/david-lacarriere-gary-mcarthur-jfk-c...
Theft ring.
https://www.cbsnews.com/newyork/news/authorities-kennedy-air...
Other thieving employees.