' -l2- of the Test site" are not justified in the absence of direct meusurements of radioactivity level: in locas milk. Even the inadequate indirect measurements that have been carried out, if properly interpreted, should have alerted the responsible agencies to the serious potential health hazards during test programs and to the necessity of warning the population to take simple, readily available protec:ive measures. 5) alone. These hazards are not restricted to atmospheric tests Available data show that following at least 7 undere ground tests, local fallout contamination comparable to that produced by atmospheric tests occurred. 6) In.view of the foregoing conclusions we recommend, urgently, a thorough review of present fallout monitoring 7 procedures, with a view to rectifying the present inadequagies with respect to data, interpretatioc., regarding precautionary seasures. and public information In View of the probabil high radiation exposures to the population in the Nevada Test Site region we recommend a careful medical follow-up study of exposed individuals, in order to facilitate detection and treatment of possible diseases.