[vel0city]

It is not necessarily that the retirement benefits are so extreme, it is that the Post Office singularly has a requirement to pre-fund its retirement fund massively in advance. No other agency is required to do so.

https://federalnewsnetwork.com/agency-oversight/2020/02/hous...

The Postal Accountability and Enhancement Act has pretty much been at the core of why the USPS has had such extreme woes.

https://en.wikipedia.org/wiki/Postal_Accountability_and_Enha...