machine that was trying to physically eliminate anybody dissenting with putin who posed a threat to him. what can you tell us about the methods and strategy that you used to track down navalny s would be killers? i mean, that was such an incredible reporting that was done. and i know our clarissa ward at cnn was part of this. tell us how you were able to accomplish that. i think we succeeded in this because we had made several previous investigations on russian poisoning attempts on other people. one of the breakthroughs that we made was in 2018 when we were able to identify the poisoners of the scriptles, the double agent, the former russian spy who was living in the uk and poisoned two by two officers. in that investigation we were able by using phone records and travel data obtained from the russian black market essentially