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(a) If the tempo of war increases the C.P.G. might
also instigate an anti U.S. campaign despite the problems of control. It might then be necessary to restrict R. & R. though much would depend on H.M.G.'s attitude.
(c) A risk of N. Vietnamese and/or C.P.G. inspired
sabotage of U.S. establishments, property and equipment in Hong Kong could develop but this is unlikely, though it would be prudent now to increase surveillance of vessels trading with Haiphong.
(f) The danger to our food supply would be from a
spill over of the war into Cambodia and
Thailand, particularly the latter which supplies the bulk of our rice.
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