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://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
https://www.kommersant.ru/doc/3511567
https://www.kommersant.ru/doc/3512383
https://ru.krymr.com/a/28944363.html
https://www.gazeta.ru/army/2017/12/28/11562134.shtml
https://ru.krymr.com/a/28941690.html
https://www.gazeta.ru/politics/2017/12/27_a_11551004.shtml