293 F. Supp. 630, affirmed.
William J. Lippman, Robert Joyner, and Roland Rice for appellants.
Solicitor General Griswold, Assistant Attorney General McLaren, Robert W. Ginnane, and Raymond M. Zimmet for the United States et al., and William P. Sullivan and William P. Jackson, Jr., for appellee Contract Carrier Conference of American Trucking Assns., Inc.
The motions to affirm are granted and the judgment is affirmed.