Please stop the silly BS. According to the USPS (bold added):
WASHINGTON
The U.S. Postal Service ended the 2013 fiscal year (Oct. 1, 2012 Sept. 30, 2013) with a net loss of $5 billion. This marks the 7th consecutive year in which the Postal Service incurred a net loss, highlighting the need to continue to capitalize on growth opportunities, reduce costs, and enact comprehensive legislation to provide a long-term solution to the agencys financial challenges.
http://about.usps.com/news/national-releases/2013/pr13_087.pdf
Do you understand that the mail is Federally protected after it hits the Post Office? Not through anyone else?
Do you understand that only the Post Office, due to the legislation that was provided for you, is the only organization required to pay 75 years in advance for retirement/benefits-by 2016?
Do you understand that $50billion was overpaid to CSRS and should be returned?
Do you understand that $6.9 billion was paid (overfunded) to FERS and should be returned and you will see the profit?