I don't know much about S.America's economics perhaps @Sakal Gharelu Ustad or maybe @pmaitra knows.
I do know that the US likes to experiment with leaders, by "peaceful" coups and sometimes buy off the whole "Congress" or whatever.
"chutiya incompetent agency", even better. :lol:
But I'm guessing KGB was active in covering Castro.
Also I think the most effective agencies are Israeli.