No. 06-3154. May 15, 2007. Robert B. June, Law Offices of Robert June, P.C., of Ypsilanti, MI, argued for petitioner. David G. Karro, Attorney, Law Department Civil Practice, United States Postal Service, of Washington, DC, argued for respondent. With him on the brief were Robert D. McCallum, Jr., Assistant Attorney General, Commercial Litigation Branch, Civil Division, United States Department of Justice, of Washington, DC, and Lori J. Dym, Chief Counsel, Law Department Civil Practice, United States