http://www.pbs.org/newshour/bb/government_programs/july-dec11/postoffices_09-06.html
actual fact from the postmaster general...funny he doesnt mention unions
more facts
In addition to putting an end to Saturday delivery, the USPS is also hoping to
change the face of its workforce. Last year, it helped fund a $6 billion cut in its bottom line by dropping 40,000 employees. Over the next ten years,it expects that roughly half of the USPS workforce -- 300,000 employees -- will either retire or voluntarily quit. Rather than replace them with comparatively expensive full-time workers, the Post Office plans to follow in the footsteps of the rest of corporate America by hiring part-time workers who are not eligible for benefits. While these workers will place a bigger burden on an already-stressed social net, they will also lower the Post Office's bottom line
the real issue besides a bad business model
the financial problem stems from a 2006 rule requiring the agency to pre-fund retiree health benefits. HR 1351 would return that money to the postal service retiree health benefit fund, which would free up between $60 to $80 billion
http://redtape.msnbc.msn.com/_news/2011/10/07/8191425-twisted-government-accounting-behind-postal-service-woes?lite