behind the Commission's security barriers to evaluate the opportunities for commercial development. On December 20, 1951, at the Cammission’s Idaho Test station, Zinn and a group of engineers from the Argonne National Laboratory succeeded in producing a token amount of electricity from an experimental fast breeder reactor. This historic accomplishment demonstrated in a practical way that the atomic nucleus could serve mankind as a source of power.(11) Probably the most successful reactor program in the 1950’s was the naval reactors project established and directed by Admiral Hyman G. Rickover. On June 14, 1962, at the keel-laying ceremony for the world’s first nuclear powered ship, Chairman Gordon Dean noted that the pro- pulsion of the submarine Nautilus would be thefirst prac- tical utilization of atomic power, heretofore used primarily as an explosive. The Navy projectlater played a significant role in the widespread adoption of pressurized-water reactors by the nuclear powerindustry in the United States.(12) By the end of 1962, technological developments had generated a broadinterest in nuclear power in Congress as well as in industry, and the election of a Republican president brought further encouragement. Indeed, there was soon reason for optimism. Two outstanding accomplishments of the Eisenhoweryears, the 1953 Atomsfor-Peace plan, and the passage of the 1954 Atomic Energy Act were to have a significant impact on the Nation's nuclear program.(13) Atoms for Peace early summerresulted in a new law which opened the door for an exchangeof nuclear technology. with other nations. Althoughindustry did not gain the right to ownfissionable material, liberal licensing provisions, greater access to technical data, and the right to own reactors provided the essential conditions for the private development of nuclear powerin the United States.(16) The Five Year Pian Even before Congress had passed the Atomic Energy Act of 1954, the Commission had launched a new program for power reactor development. In early 1954 Strauss announced plans to test the basic designs then under study by building five experimental reactors within five years. Of the five reactor prototypes planned, the one with the most immediate impact on nuclear power development wasthe Pressurized Water Reactor (PWR) at Shippingport, Pennsylvania. Based on the technology developed for nuclear propulsion systems for submarines, Shippingport was completed on schedule in late 1957 as the Nation's first full-scale nuclear generating station. The other reactor experiments constructed under the five year program included the Sodium Reactor Experiment built by North American Aviation, a Commission contractor in southern California; the Experimental Boiling Water Reactor constructed at the Commission's Argonne National Laboratory; and new models of the fast breeder and homogeneous reactor experiments built in the early 1950's at the National Reactor Testing station in central on December 8, 1953, President Dwight D. Eisenhower Idaho, and the Oak Ridge National Laboratory in Tennessee. Of the five experiments in the program, the Shippingport and the Argonne boiling-water reactors encountered fewer technical probiems, but each experiment contributed to the development of the technology needed to build full-scale nuclear powerplantsin the future. policy Cooperation with Industry Speaking before the United Nation’s General Assembly declared that ‘‘peaceful power from atomic energy is no dream of the future. . .that capability, already proved, is here today.”(14) The President's Atoms-for-Peace proposal became a major pronouncement of America’s public concerning the international management of nuclear energy. With a sufficient supply of uranium to satisfy its own military needs, by 1954 the United States could turn its attention to the promotion of the peaceful The terms of the Atomic Energy Act enabled the Commission to encourage private industry to build its own Lewis Strauss had been President Eisenhower's special assistant for atomic energy prior to his appointment as Commission chairman in July 1953. Strongly committed to national security during his early years as a Commissioner, and supportive of Truman’s decision to expedite the development of the thermonuclear weapon, Strauss was now in a position to work closely with Eisenhowerin promoting the peaceful atom on a world-wide basis. January 1955 Power Demonstration Reactor Program with uses of nuclear energy.{15) The Atomic Energy Act of 1964 The President's Atoms-for-Peace speech also focused attention on the need for a fundamental revision of the Atomic Energy Act of 1946 to enable the Commission to share technical and scientific information with foreign governments. On February 17, 1954, the President asked Congress to pass legisiation “making it possible for American atomic energy development, public and private, to play a full and effective part in leading mankind into a new era of progress and peace.” Exhaustive hearings in the spring of 1964 and Congressional debate during the nuclear plants, using fissionable material leased from the Government. Industry responded to the Commission's four proposals covering all but one of the Commission's five prototypes. Thus by the end of 1957, the Commission had seven experimental reactors in operation and American industry was participating in nine independent or cooperative projects capable of producing almost 800,000 kilowatts of electricity by the mid-1960’s. For the momentat least, prospects for the future of the peaceful atom were extremely encouraging.(17) International Participation In his Atoms-for-Peace proposal of December 8, 1953, President Eisenhower had proposed that the nuclear powers contribute portions of their stockpiles of normal uranium and fissionable materials to an international atomic energy agency, which would then allocate these materials toward peaceful uses. After three years of patient diplomatic negotiations, the International Atomic Energy Agency(IAEA) wasformally inaugurated in Vienna, Austria on October 1, 1957. As head of the United States