So how come JFK and Bobby had a secret program to have rapproachment with Castro, contrary to your book's thesis ?

JFK and Castro

http://www.cigaraficionado.com/webfeatures/show/id/JFK-and-Castro_7300

" Unbeknownst to all but his brother and a handful of advisers, however, in 1963 John Kennedy began pursuing an alternative script on Cuba: a secret dialogue toward an actual rapprochement with Castro. To a policy built upon "overt and covert nastiness," as Top Secret White House memoranda characterized U.S. operations against Cuba, was added "the sweet approach," meaning the possibility of "quietly enticing Castro over to us." National Security Council officials referred to this multitrack policy as "simil-opting"--the use of disparate methods toward the goal of moving Cuba out of the Soviet orbit. By April 1963, alongside proposals for covert sabotage, diplomatic pressure and military contingency plans, "gradual development of some form of accommodation with Castro" was listed in high-level NSC option papers. In a memorandum on "The Cuban Problem," Kennedy adviser McGeorge Bundy provided the rationale for this type of initiative: There is always the possibility that Castro or others currently high in the regime might find advantage in a gradual shift away from their present level of dependence on Moscow. In strictly economic terms, both the United States and Cuba have much to gain from reestablishment of relations. A Titoist Castro is not inconceivable, and a full diplomatic revolution would not be the most extraordinary event in the 20th century. For the Kennedy White House, there was nothing incongruous about such a policy turnaround, Bundy explained in an interview shortly before his death, in 1996. "We wanted to make a reality check on what could or could not be done with Castro," he said. President Kennedy, according to Bundy, "clearly thought this was an exploration worth making because it might lead to something." Kennedy was "strong enough to explore it in a politically nondangerous way." Then, as now, the dangers of domestic politics mitigated against any open effort at a dialogue. With the president already thinking ahead to the 1964 elections, the key problem, Bundy recalls, was "finding a way to do it" that was secure and reliable. "We didn't have a department of peaceful tricks," he noted cryptically. By mid-1963, the Kennedy White House was waiting for what Bundy referred to as "a target of opportunity" to talk to Fidel. It is a historical irony that the opportunity to communicate with Castro arose from the two most hostile episodes in U.S.-Cuba relations: the CIA-directed invasion at the Bay of Pigs and the missile crisis. Negotiations for the ransomed return of 1,200 Bay of Pigs prisoners provided the contacts and confidences under which the first messages could be passed; and the Kremlin's unilateral decision to withdraw its nuclear missiles appeared to provoke a Cuban-Soviet breach that the United States could exploit. Castro's anger at Khrushchev for failing to consult him on the end of the missile crisis caught the attention of U.S. policy makers. An intelligence report on "Future Relations with Castro" prepared by the State Department in June 1963 noted that the "Soviet refusal to run the quarantine and its acquiescence in withdrawing the missiles shook the foundation of Cuban foreign policy." Since the missile crisis, the report stated: Castro has indicated, sometimes vaguely, sometimes rather clearly, through various channels, public as well as private, that he is interested in an accommodation with the United States. His immediate disillusion over the Soviet missile crisis posture probably prompted him to grope for a policy which would diminish his dependence upon the Soviet Union...."