the Paducah camlex. In addition, a third gaseous aifusion camplex was erected at Portsmouth, Ohio. To increase plutonium production two new large reactors were added to the Hanford complex. 18 Edward Teller, meanwhile, continued to press for a second weapon research laboratory. Failing to convince the Commission, he took his campaign to the Joint Committee on Atcmic Energy and the Department of Defense. By late March 1952, he had won so many allies that the Cemmis- sion concluded it would have to build another weapon research laboratory. The Commission picked Livermore, California as the site and by September the laboratory was a reality.9 As the Commission activated its second weapon laboratory the pace o= testing accelerated. The proximity of the Nevada Test Site to Ios Alamos allowed laboratory scientists to ccmmute easily between test series and laboratory planning. a third continental By April 1, 1952, the Commission began series of weapon tests, Again the yields were relatively small. Military effects tests called Tumbler-Snapver. Again the Commission conducted and units of soldiers maneuvered across the desert after several shots. At Tumbler-Snapper, however, the Commission shared radiological safety responsibility for the soldiers with the Army. For the first time the Commission invited a limited maumer of newsmen to witness and film the April 22, 1952 shot inorder to give the American people first-hand knowledge of an atomic explosion. The Commission had finally completed permanent facilities at the test site and had established an extensive off-site radiation monitorinc network, 2° The monitoring network, which could track fallout across tre nation, had been established by the Commission's division of biolocy and medicine. The division provided the Commission with advice from medical