344 U.S. 298 344 U.S. 298 73 S.Ct. 307 97 L.Ed. 337 AMERICAN TRUCKING ASS’NS, Inc. et al.v.UNITED STATES et al. EASTERN MOTOR EXP., Inc., et al. v. UNITED STATES et al. SECRETARY OF AGRICULTURE OF UNITED STATES v. UNITED STATES et al. Nos. 26, 35, 36. Argued Nov. 17 and 18, 1952. Decided Jan. […]