Mail about to get a lot slower.

Eeyore said

Some people are unable to comprehend that the United States Postal Service is a SERVICE. It isn't supposed to be profitable. It's supposed to cost exactly as much as it needs

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And the reason that it is not profitable is because Congress sabotaged it with some rule that their pension has to be totally funded for 50 years out (or something like that). So it's not that the business model is a continual loss - it's actually structured so it can't possibly break even.