A KGB manual showed how valuable—and how treacherous—Russian émigrés could be. Did KGB veteran Vladimir Putin learn those lessons?
https://www.thedailybeast.com/the-kgb-playbook-for-turning-russians-worldwide-into-agents
https://ru.krymr.com/a/28945910.html
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
https://www.kommersant.ru/doc/3511570
https://www.svoboda.org/a/28943824.html
https://ru.krymr.com/a/28944257.html
https://republic.ru/posts/88740
http://www.rosbalt.ru/world/2017/12/28/1671249.html
https://www.gazeta.ru/sport/2017/12/28/a_11564102.shtml