a 1. a Introduction ‘The impetus for development of this program comes from the long-expressed desire of the People of Enewetak to return to their homeland. Although resigned to their nearly thirty ‘ear exile at Ujelang Atoll, they have never given up hope of returning to Enewetak, if but only if,.it is radiologically safe for them to do so. They are aware of the substantial social and economic problems which necessarily attend the relocation and resettlement of their more than 400 persons, but the difficulty of assessing the risk from the extensive radioactivity present at the Atoll as a result of the nuclear «2apons testing program there is by far the most troublesome. It is difficult enough for the layman tuo comprehend what the experts in the various radiological science fields are saying Ne about the effects of radioactivity, but that difficulty is compounded many times over the differences of opinion found among the experts, by the realization that even the experts agree that the long term effects of some of the more dangerous radionuclides are not known by anyone at this time and may not become known for Many years to come, and it is unsettling to learn that the standards used for the kinds and amounts of radionuclides to be tolerated in the environment and in man are criticized by reputable experts as unreliable and inadequately conservative. | ‘ Their individual and. collective desire to return to their ancestral homeland is difficult for Americans to fully appreciate. To them land is not a commodity, a thing apart, to be