UNITED STATES POSTAL SERVICE v. NATIONAL ASSOCIATION OF LETTER CARRIERS, AFL-CIO, APPELLANT. No. 92-5076.United States Court of Appeals, District of Columbia Circuit.Argued September 10, 1993. Decided November 23, 1993. Page 139 Appeal from the United States District Court for the District of Columbia (90cv0230). Keith E. Secular, argued the cause, for appellant. With him on […]