Sen. Tom Coburn, R-Okla., outlines his annual "Wastebook," which points a critical finger at billions of dollars in questionable government spending, on Dec. 17 on Capitol Hill. J. Scott Applewhite/AP hide caption

itoggle caption J. Scott Applewhite/AP

Veteran USPS letter carrier Michael McDonald gathers mail to load into his truck before making his delivery run in the East Atlanta neighborhood on Thursday, Feb. 7, 2013, in Atlanta. David Goldman/AP hide caption

itoggle caption David Goldman/AP