The object of these links to articles is to set the scene for later posts.
Richard Silverstein is a progressive (critical) Zionist. He supports Israeli withdrawal to pre-67 borders, the sharing of Jerusalem, a Law of Return that applies equally to Jews and Palestinian refugees seeking to immigrate, and an internationally-guaranteed peace agreement with the Palestinians.
Here is the piece:
https://www.richardsilverstein.com/2016/12/10/kgb-infiltrated-highest-echelons-israels-army-business-political-leadership/#comments
Israeli media:
https://www.timesofisrael.com/top-israeli-officials-were-part-of-kgb-spy-ring-report/
https://www.haaretz.com/amp/israel-news/.premium-top-kgb-spies-in-israel-exposed-in-secret-soviet-documents-1.5454268