> In the late 1940s, Kim Gu had unification talks with Kim il-Sung but the CIA had him assassinated in 1949.
Taking a look at Wikipedia, the assassin seems to have been an US Army Counter Intelligence Corps (CIC, of "ratlines" fame) asset. Are there indications of him also being employed by OSS or some of its descendants (among which CIA is included), or did you just mistake one part of the US government for another?