Tucson would be the largest city to lose its processing and distribution center if the USPS proposal does go through.
Also, Tucson and Southern Arizona would have the biggest drive to get mail to Phoenix.
http://www.mediafire.com/?tx7t0c9t9wxbi6o,7nc27f4w0sa1fxu,12kdgsjm8ec9v9t,5ipi245jmxiiy9d