I don't know anything about the validity or real veracity of the Fatima Apparitions and, quite frankly, they have never even been on my radar. However, I will ask this - what good has come from them?
One of the interesting things about Fatima is the fact that the Catholic Church apparently did not even take it seriously until John Paul II led the Catholic Church. Then, it was elevated to a real level of concern. Why was it elevated to this level during his pontificate? Because he saw the Catholic Church spinning horribly out of control and he saw the Fatima promises as a way to right the ship. The prophecies were an answer to him about all that was wrong in and with the Catholic Church. Sort of a last ditch effort to fix things.
So; while I wouldn't have agreed with Mr. Carlton a few years back, I agree with him now. I think that Fatima was/is correct in one regard - that the enemy would enter the Catholic Church and use it for his own designs. Furthermore, rather than being a prophecy fortelling what would have to happen to stem the tide of demonic posession/infiltration in the Catholic Church, I think it was one of the first signs that the enemy had taken over the Catholic Church. I know this may sound harsh but the fact remains that all is not well in the the Catholic Church and the depths of deception/corruption seem to go very deep and broad. In fact, I am becoming more convinced that Satan is alive and well in the Catholic Church and that it was a deliberate effort on the part of some members of the hierarchy to ensure this would happen. Without going into great detail, look at what the Catholic Church has propegated on the world over the last 40+ years - liberation theology, neopaganism within the Mass and religious communities, rampant homosexuality, pedastery among the clerics, etc. Do these really sound like things of God? All the while, the Orthodox Church plugs away and remains faithful to its past. You don't see the same kind of issues/problems within Orthodoxy that you do in Catholicism. Oh sure, the Orthodox have their own unique problems but they aren't as evil as those within Catholicism.
Understand, I am a Catholic layman. I don't like to admit that these things exist within Catholicism but it is time for everyone, and I mean everyone, to take a good hard look at what the Catholic Church professes to be and what she actually is. From my perspective, it is quite clear that the gates of hell have prevailed against the Catholic Church and that she cannot lay claim to being the true Church of Christ. Seriously, this brings to mind the old saying, "By their fruits you shall know them." Just llok at the fruits of Catholicism and you will realize what it is all about.