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.kommersant.ru/doc/3512349
https://www.inopressa.ru/article/29Dec2017/dailybeast/kgb.html
https://ru.krymr.com/a/28944363.html
https://www.svoboda.org/a/28942416.html
https://ru.krymr.com/a/28941690.html
https://www.kommersant.ru/doc/3508478
http://carnegie.ru/commentary/75112
https://www.kommersant.ru/doc/3511813
https://www.kommersant.ru/doc/3509202