Do you think that the majority of people read the full article?

Do you think the CIA thinks the majority of people read the full article?

Do you think the CIA engages honestly with the press to simply provide information to the public?

GP's analysis is correct: the CIA knows that people will read vaguely and shallowly and take away a confused anti-cuban sentiment, and this is their intended outcome. "Heavily suggested" doesn't mean "actually, if you read the full article, they didn't say that", it means they're heavily trying to suggest this.