TECHNOLOGY ASSESSMENT-1970 HEARINGS BEFORE THE SUBCOMMITTEE ON SCIENCE, RESEARCH, AND DEVELOPMENT OF THE COMMITTEE ON SCIENCE AND ASTRONAUTICS NINETY-FIRST CONGRESS SECOND SESSION ON H.R. 17046 MAY 20, 21, 26, 27; JUNE 2, AND 3, 1970 [No. 21] Printed for the use of the Committee on Science and Astronautics 46-927 U.S. GOVERNMENT PRINTING OFFICE WASHINGTON: 1970 CHARLES F. DUCANDER, Executive Director and Chief Counsel PHILIP B. YEAGER, Counsel FRANK R. HAMMILL, Jr., Counsel DENIS C. QUIGLEY, Publications Clerk JAMES A. ROSE, Jr., Minority Staff SUBCOMMITTEE ON SCIENCE, RESEARCH, AND DEVELOPMENT EMILIO Q. DADDARIO, Connecticut, Chairman JOHN W. DAVIS, Georgia JOE D. WAGGONNER, JR., Louisiana EARLE CABELL, Texas BERTRAM L. PODELL, New York JAMES W. SYMINGTON, Missouri ALPHONZO BELL, California Elmer B. Staats, Comptroller General of the United States, accom- Dr. William D. McElroy, director, National Science Foundation. Dr. Edward Wenk, professor of engineering and public affairs, Uni- |