Trivia.com
USPS Delivery Vehicles are 30 years old + they use engines designed in the 70's that get 10 MPG
Trivia.com
the United States Postal Service is the single largest employer of veterans (22% of the postal workforce) and nearly a third of the veterans are disabled.
Trivia.com
Before 1863 the postal service in the US was free
See also
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