It is very unfortunate, but there is a huge amount of misinformation about the Bay of pigs. This began even before the invasion. To some extent, is the nature of compartmentalization of these operations, and the deception that entails, and then part of it is the result of deliberate lying. Most of the stories are very incomplete or completely wrong.

The Taylor Comission’s report on the Bay of Pigs was not fully released until the year 2000. Among other things that came out, it states how the Soviet union knew the exact date and most likely the location in advance. Sources showed that the Soviets got this knowledge on April 9, even before the Cuban exiles themselves have been briefed. I’m not sure how, but the info came from the CIA itself. Wiretap? Cryptography? A spy? I don’t know that the report says how, but that was what Maxwell Taylor’s commission reported.

Like so many things, when more information comes out, it completely changes the entire narrative. The fact that the Soviets knew in advance means that everything written before the year 2000, much of which already was pretty sketchy, is incomplete.

This happens. All the old books stay on the shelves, and the people who wrote those books or got their PhD on this usually aren’t in a rush to correct things.