Pilfering from the mail is SOP south of the border.
"Jarol Garcia," "Sherry Naomi Watanabe", and "Norman A. Muschamp"
I think you are misplacing the blame. The USPS somehow manages to combine the worst habits of the civil service with the worst aspects of private business. To include incredibly poor supervision of employees.
This is corrupt employees combined with poor management. Affirmative action and "south of the border" values are not the issue this time.
While it was before my time, my impression is that the old Post Office Department, as inefficient as it was, better served the public than the USPS.
I remember the postman coming around several times a day at Xmas time back in the early fifties. It’s a different outfit, for sure.