employ for this work 12 scientists whose only experience and background is in chemical weapons. our hypothesis, this is the entity that actually provides the poison for the killers which travel around the world poisoning people with novichok. so what we did is we bought from the russian black market. the phone records for the head of the signal institute. we looked at numbers that only appear just before the poisoning of navalny, and those were suspicious, but once we have a suspicious number, you go through a number of russian apps that allow you to see how that phone number is listed in other people's phone books, so, for example, i put in my number, and it would show up as kristol the journalist from bellingcat because somebody would have put my name into their phone book and that description would be shared.