The real reason why United States Postal Service is bankrupt.
Amazon uses USPS to ship many orders.
Jeff Bezos forced USPS to accept the below USPS's cost shipping rates.
Do you know why I know this?
I just ordered something (big and heavy) from Amazon yesterday and they shipped it already and gave me a tracking number.
(They shipped it within 3 hours of my placing the order. What a great company! No wonder the stock is constantly overvalued. People like grandpas and gandmas love Amazon!)