>>>Some of that information was then gained by the KGB, either because the KGB had infiltrated the Mossad, or because (as is rumored) the Israelis traded it in exchange for Jews living in the Soviet Union.
What????
That place in Israel, shoot, forgot the name, Golan Cipel is from there, is infiltrated with Russian Mafia. Why would Israel want to compromise themselves like that?
One way or another, the KGB gained information from the Israelis we didn't want them to have. This is why we don't simply share everything willy-nilly with allies - you have no way of knowing where it goes after it leaves your hands. Whether this guy was trying to trade or not doesn't really matter - he's not a freelancer, and it's not his decision about what gets shared and what doesn't.