Dept of Jus- tice, Office of Consumer Lit, Washington, D.C., Linda M. Cipriani, Asst. U.S. Atty., Henry K. Oncken, U.S. Atty., Frank A. Conforti, James R. Gough, Met U.S. Ate tys., Houston, Tex., for the U.S. Appeals from the United States District Court for the Southern District of Texas. Before RUBIN, F