$75 billion means the USPS did not negotiate in good faith with the unions and associations and shortchanged each and every employee by about $100,000 ~ so, as I've been telling you, USPS employees actually pay for their own pensions out of earned income.
And you? Do you have a 401(k) plan perhaps?
I thought that the $75 billion excess came from mandatory calculation methods imposed upon them by regulators and Congress, as opposed to any kind of duplicity or bad faith on their part.