USA politic "burned there finger" twice on Cuba
in 1961 with Bay of Pigs invasion fiasco and 1962 with Cuba Missile crisis that allmost ended in Nuclear war.
after 1963 the soviets had deploy all of ICBM to hit USA, in case they invade Cuba.
Would they burn there finger for third time and risk a Nuclear war?
There is disturbing scenario:
according German TV documentation
Rendezvous mit dem Tod: Warum John F. Kennedy sterben musste
Commit the Cuban secret service the assassination of U.S. President J.F. Kennedy, after CIA failed in series of assassination attempts on Fidel Castro.
Let asume this is true and investigation into murder of J.F. Kennedy find out: it was the Cuban secret service.
in 1964 Capitol Hill would vote UNANIMOUS for invasion of Cuba to get Fidel Castro and Culprits.
The Wildcard in this scenario is Leonid Ilyich Brezhnev new leader of USSR
would he push the Red button and unleash Nuclear War ?