WESTERN UNION INTERNATIONAL, INC., RCA GLOBAL COMMUNICATIONS, INC., AND ITT WORLD COMMUNICATIONS INC., PETITIONERS, v. FEDERAL COMMUNICATIONS COMMISSION, UNITED STATES OF AMERICA, AND AMERICAN TELEPHONE AND TELEGRAPH COMPANY, RESPONDENTS, AND AMERICAN TELEPHONE AND TELEGRAPH COMPANY AND TRT TELECOMMUNICATIONS CORPORATION, INTERVENORS. Nos. 564 to 566, Dockets 77-4183, 77-4184 and 77-4191.United States Court of Appeals, Second Circuit.Argued […]