In 1984, a former KGB agent, Yuri Bezmenov, claimed in a lengthy interview that:
@32:11: [...] progressive intellectuals; writers, journalists, publishers, professors of colleges [...] For us they were just a bunch of political prostitutes to be taken advantage for various propaganda operations.
which he describes multiple times as "useful idiots". For example, about a professor of political science in Delhi University:
@48:53: He is made to believe he is invited into USSR because he is a talented, sober thinking intellectual. Absolutely false, he is invited because he is a useful idiot, because [...] when he is coming back to his own country he is going for years and years to teach the beauties of soviet socialism [...] thus promoting the soviet propaganda lie.
According to Bezmenov, there are 4 stages:
The "useful idiots" start occupying positions of power and "demoralize" a nation:
@1:09:43: Marxism, Leninism ideology is being pumped into the soft heads of at least 3 generations of American students without being challenged [...]. The result: [...] drop-outs or half-baked intellectuals are now occupying positions of power in government, civil service, educational system
"Destabilization" follows by attacking/destabilizing:
@1:13:50: [...] economy, foreign relations, defense systems.
Then follows what he calls "crisis":
@1:14:38: a violent change of structure, power and economy
"Normalization".
In another interview where Bezmenov describes the stages in detail, he refers to the key contributors as leftists that should be stopped before the situation escalates into the crisis stage:
Why didn't you stop the process here [points at demoralization stage], when Grenada was just approached by leftists
Question:
Was KGB really using leftists in an attempt to damage nations in the ways described by Yuri Bezmenov?
Note 1: He uses the term "progressive", "liberals", "leftists" several times throughout his speeches. I can't post a single quote because Yuri Bezmenov's "claim" is very fragmented.
Note 2: I'm not interested in discussing politics, whether communism is good or bad, whether the attack described by Yuri would succeed or not, or its flaws. I'm looking for evidence (preferably official documents, not newspapers) that discredits (or, however unlikely, confirms) the above conspiracy-looking theory.