at the Commamt Post sayi the Radsafe CANTER of TG 7.1 was aiequate. The special CW station sst up in the Radsafe OFFICS and tied into the wB<29 Clow? Tracker anit the Weather staticn net to intercept in-flight radsafe reports ind to rolay changes in flight track, was the key to the successful accomplishment of the cloud tracking plan. Rapid amd accurate means ¢f com mumication were the indispensible ingredients of all post-shot efforts to asseee 2m anslyse the fall-out cepects ef the shots, 2. Recommendations: a. General; (1) An adequato danger area should be establishe: for fiture operations at the PPG, Danger area notices relative to the establishment shoul< be given wide dissemination, (2) Native pepuletions within $00 miles of the test sits shoul: be briefed in advance on the general features of the oreration and the gener: nature of the safety measures to be taken for their protection, (3) Studfes should be made relative to the concentrations of hasarcous longelived fission products on the MiRSHALL Islands to the east of BIXINT, (4) Manned rsdsafe monitor stations should be rroviled for at least tho northern MiRSHALL Islands. Stations shouli be equipped with roentgen range instruments and with railo commmication facilitics, and shou be in operation from H hour until approximately D plus 3 loys. The aricery miseion of the stations should be to determine and repert significant intensities, to obtain ths time variation of intensities, ani to evaluate "shine effacts. (S) Film baiges should be provited for a rasresentative cumber 102