From William LeoGrand and Peter Kornbluh, the back story from Havana: U.S.-Cuba Diplomacy Comes Out of the Shadows | Foreign Policy.
What does this story have to do with JFK’s assassination?The gunfire in Dallas aborted JFK’s secret diplomacy aimed at reconciling the United States and Cuba.
JFK’s initiative began after the Cuban missile crisis of 1962. Having rejected the Pentagon’s plans to invade Cuba, JFK told an aide he favored “the sweet approach” to dealing with Fidel Castro’s revolutionary regime.
In the fall of 1963, JFK was pursuing the course the President Obama eventually followed: restoring normal diplomatic relations,
When JFK was killed, his initiative died. The United States and Cuba continued to negotiate–but only in secret.