-28. Russian activities are a little more obscure, because no attempt has been made to find out. They are certainly active in Berlin and at the Junkers plant at Dessau, which is being re-started but in the main they seem to be adopting a policy of evacuating the technicians, together with their complete laboratories and staffs to Russia. 9. It is a simple matter for individuals to pass between the British, French and American zones, and only slightly more difficult to pass in and out of the Russian zone.