24 April 2018 | ZEROGeoengineering.com | AUGUST 1974| CIA-US-USSR Weather Modification Exchange 1952 “ABOVE REQUEST BASED UPON SOVIET DELEGATION’S INTEREST IN GAINING FAMILIARIZATION WITH METHODS OF EVALUATING RESULTS OF WEATHER MODIFICATION EXPERIMENTS.” Link To Document   Source: https://www.cia.gov/readingroom/docs/CIA-RDP79-00798A001000070009-1.pdf