No, ok how bout this
The US intelligence agencies would have had good reason to know who LHO was well before 1963. As soon as he was repatriated to the US he would have had to be closely watched on some level surely for some years. For all intents and purposes he could be a foreign agent or acting in the interests of. They don't just let cold war traitors come back and live freely.
So If that surveillance were to be necessary who might carry that out? Probably CIA counter intelligence. The catch with CI is you must speak the language of those you wish to coerce.
To think its a coincidence a returning traitor killed JFK.
Come on now.
The intelligence community in the US knew who he was in 1961.
not sold? ask yourself this.
How many ex-servicemen do you think might defect to Russia and then ask to
come home and it gets granted, in lets say in 1 year? or ten years? or ever?
and nobody knew who he was? Man GTFO that is simply unbelievable
How dumb do you think your intelligence is? huh?