What Glover said in his book (anyone reading this can search for the word 'mongoose' to find the passage):
"The United States had supported the unsuccessful 'Bay of Pigs' invasion by anti-Castro Cubans and contingency plans were made, under the code name 'Operation Mongoose', for an invasion by American forces."
What the original documentation from primary sources says about Mongoose under appendix J of "Program Review by the Chief of Operations, Operation Mongoose (Lansdale), 18 January 1962" :
"Status: Defense has been tasked with preparing a contingency plan for U.S. military action, in case the Cuban people request U.S. help when their revolt starts making headway. This contingency plan will permit obtaining a policy decision on the major point of U.S. intentions, and is looked upon as a positive political-psychological factor in a peoples' revolt, even more than as a possible military action. Defense also has been tasked with fully assisting State and CIA, as commitments of Defense men, money, and materiel are required."
So Glover is correct. Above reviewer is wrong.
Secondly, RE: the NKGB and NKVD comment. Again, other people reading this can search for the term NKVD and go to page 247, where the author Glover states:
"When the lights went up after the film, Stalin put his hand round Voroshilov and said to the NKVD (later KGB) chief, Beria, ..."
As you can see, the passage in question is talking about the Chief of Soviet security under Stalin: Lavrentiy Beria ; not, the organisations themselves. So the reviewer here has read the passage wrong, or is confused about the history, which is understandable given the mess of Russian intelligence organisations .
As to the rest of this review I'll leave it up to the reader to decide whether he deserves an upvote or downvote. Suffice to say, amateur reviewers with an axe to grind need to leave reviews to reviewers who actually know what they are talking about, and blab on with strawman nonsense no one cares about on their blogs, and leave Amazon free of their personal rants.
(1) Found here: http://www.mtholyoke.edu/acad/intrel/cuba
(3) See here for the confusing chronology: http://en.wikipedia.org/wiki/Chronology_o