CNN Situation Room With Wolf Blitzer October 20, 2015 21:03:00
Into each other in skies over syria. the u.s. is not revealing how vague the agreement is. >> our crews know what a safe distance is and the obligation is upon the russians to maintain that safe distance. >> reporter: but cnn has learned, it does not even specify how far away u.s. and russian aircraft have to stay from each other. >> these protocols include maintaining professional airmanship at all times, use of specific communication freque y frequencies and the establishment of a communication line on the ground. >> reporter: if there is an incide incident, u.s. pilot will have to call the ...
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