Would thay have them in Korea? Colonel Hooks, would you foov aout thts! HOOKS s IT don't know for certain. I assuse note LIBEYs How about Europe? HOOKS s Yes. LIBBEY: I heave a notion we may get some definite proof of the of high lying radioactivity just by vatching operational craft in this simple mamer. New, of course, putting on filter or anything like this is bound to be suse trouble but if 1t ts as simple as measuring radioactivity on the | channels of a duct in a jet, I think maybe ve might get don . Now of course it would be rough, tut at least it may be getting. I just wonder vhether it tan't vorth trying. ina't extirely crasy. There 1s «thermal gradient in th aysten, and this thing ts « possibility of separating ¢ pertioulate matter. The yield, of course, would be lew, but there Le probably a lot ofstuff ia the lage: me: of air that goes through these airplanes that compensate Another Line of attack 1s to developa sampling program for the high altitades, and I think this vould have to be done ch s longer range basis. I think it 1s quite important to the higher layers before the CASTLE series, if we possil Tf anyone has any idea of a simple way of using opera airplanes to get evidence of radicactivity in the stratomp vell, above 30,000 fte, it would be quite valuable. “~ - pane a 4 ' 179