. 'ro, + wo v4 ag rt : ye y : - - - .. ; ‘ Se Page.2__oftelegramto ° a4 ~~, - Amembassy, LONDON | UNCLASSI FLED { contemplated for production. keWo New theories and new designs must be tested in the laboratory or in the field to prove their performance before produc- ¥i i tion can be prudently begun. et wey! 1 te te ae wore Pa Sey . ; Pa ’ - but, it is equally essential in the armaments field. . oo: 7 . okt ann : a , - a) . Lo. ~'madntained by no further effort. wea et a ae A superior weapons capability is not an objective which can be once gained and therafter a oho ste This is obvious in the aeronautical field This 1s apparent if viewed in terms of fantliar objects such as radio, television, chemistry and transportation. 3 7 Likewise, in every phase of weapons capability, constant efforts toward 5 é FEL *4 ~ improvement have to he made to produce desired results at less cost in wd Wad re Bee OT i terms of weight, space, money or hazards to operating personnel. ; Nuclear weapons are an extremely important component of our total weapons capability which is regarded as the principal deterrent to any aggression against our national security or the security of the free or Ta cpa Fant” world. ment is necessary to maintain the effectiveness of that deterrent. The effects of blast, heat, and immediate nuclear radia&:ion from a nuclear weapon test are localised within the testing areas. However, some of the radioactive debris produced does get into the atmosphere, . E ‘ iFr * Continued testing of nuclear weapons to ensure continued improve- is spread by winds, and gradually falls to the surface. . 7 The most bio- logically important substance found in this fallout is radioactive slsontiun. Since the start of nuclear tests, careful measurements have been made of the distribution of this material over the earth's surface, in all forms in which it might be expected to occur. this study are reassuring. ‘he résults of The amount of radioactive strontium now present in the “RUVUYGIT YAIMONNSASIO "da ZHDIM DNC TAS SORT EN