Office of Technology Assessment Congressional Board of the 101st Congress EDWARD M. KENNEDY, Massachusetts, Chairman CLARENCE E. MILLER, Ohio, Vice Chairman Senate House ERNEST F. HOLLINGS South Carolina MORRIS K. UDALL Arizona CLAIBORNE PELL Rhode Island GEORGE E. BROWN, JR. California TED STEVENS Alaska : JOHN D. DINGELL Michigan ORRIN G. HATCH Utah DON SUNDQUIST Tennessee CHARLES E. GRASSLEY lowa AMO HOUGHTON New York JOHN H. GIBBONS (Nonvoting) Advisory Council DAVID S. POTTER, Chairman General Motors Corp. (Ret.) CHASE N. PETERSON, Vice Chairman NEIL E. HARL lowa State University JAMES C. HUNT WILLIAM J. PERRY H&Q Technology Partners SALLY RIDE University of Utah University of Tennessee California Space Institute CHARLES A. BOWSHER General Accounting Office HENRY KOFFLER University of Arizona Congressional Research Service MICHEL T. HALBOUTY Michel T. Halbouty Energy Co. JOSHUA LEDERBERG Rockefeller University JOSEPH E. ROSS JOHN F.M. SIMS Usibelli Coal Mine, Inc. Director JOHN H. GIBBONS The Technology Assessment Board approves the release of this report. The views expressed in this report are not necessarily those of the Board, OTA Advisory Council, or individual members thereof.