All those decades ago, the Warren Commission's report on the Kennedy assassination - which concluded Lee Harvey Oswald acted alone - didn't pass the smell test. It never stilled the conspiracy theorists' tinfoil hat musings.
Now, Politico has a story about Oswald's visit to the Soviet and Cuban embassies in Mexico City, prior to taking up a job at the Texas Book Depository. It is hard to believe someone at one of those two missions didn't encourage Oswald's David vs. Goliath fantasies of bringing down an American President, even if they didn't believe he'd succeed. What did they have to lose?
With a Russian wife and pro-Castro sympathies, it is easy to imagine Oswald getting deeply covert assistance and being left to face the music once the deed was done. The real question is what U.S. covert arrangements were at risk of exposure if Oswald's Mexican sojourn had been probed at the time? Did we have an asset at one or both of those embassies?
In some ways it would be more satisfying to view JFK's murder as yet another casualty of the not-always-Cold War. Others fallen in that war include the many dead from Korea and Vietnam.