DRAFT 1-16 Nov 52 RADIATION WEAPON TESTING pny The United States conducts two nuclear tests at Enewetak n Operation Ivy.” Joint Task Force 132 observes no significant radioactiv fallout from the detonation of the ivy Mike shot, the first full-scale thermonuclear device fired by the U.S. 20 Dec 52 WEAPONTESTING W. K. Phillips, chief of staff at headquarters of the CINC CFLT, states that "the significance" of a danger area for radioactive fallout for saféty purposes from nuclear testing "is not of great importance” but that the danger arek is convenient for security matters. He adds that for Operation ivy the joint taskj force maintained surveillance of all shipping within a 500-mile radius of the Enewptak shot site and conducted specific searches downwind up to 800 miles away.” , 5 Jan 53 WEAPONTESTING CINCPACFLT recommendsto the AEC a danger area of 16)°35’-166°28’ east longitude and 10°15’-12°45’ north latitude for conducting nuclear tests in the Pacific.” 6 Jan 53 LEGAL RESPONSIBILITY . The AEC confirms its retention of Bikini Atoll and En tak Atoll for an indefinite time for use in testing nuclear weapons. Simultaneous the Commission recognizes that the atolls’ former native inhabitants may have lan rights. Because the Departments of Navy and Interior are discussing which agerky will adjudicate such rights, the AEC "will look to whichever agency it is agreed wif ... adjust claims" against the AEC. Meanwhile, the AEC acknowledges "that the Inferior Department will administer the trust territory government in these atolls and exercise surveillance over the former native populations.” 5 Feb 53 WEAPONTESTING | T.T. High Commissioner Elbert D. Thomas protests the proposed eastern extension of the nuclear test danger area because the enlargem@nt would include about two-thirds of Ailinginae Atoll. Thomas contends that removaffofthatatoll from use would harm the Rongelapese whoobtain fish and other food frqm Ailinginae. He urges limitation of the proposed danger area boundaries to excluge Ailinginae and all other Marshall atolls and islands except Bikini and Enepetak. Thomas recommends an eastern danger area boundary of 166°17’."' 2 Apr 53 WEAPONTESTING The AEC enlarges the PPG to include Bikini as well as En 28 Apr 53 WEAPONTESTING Brig. Gen. K. E. Fields, AEC director of military application, stablishes a new danger area around the Pacific Proving Grounds of 160°35’-166°16 past longitude by 10°15’-12°45’ north latitude.”