Here is what four previous Popes have said about their visions (Excerpt from the Popes and Prophecy article on Paranormal.About.com.) :
- Pope Pius IX (1846-78): “There will come a great wonder, which will fill the world with astonishment. This wonder will be preceded by the triumph of revolution. The church will suffer exceedingly. Her servants and her chieftain will be mocked, scourged, and martyred.”
- Pope Leo XIII (1878-1903): After saying Mass on October 13, 1884, the Pope suddenly collapsed. Upon waking, he recounted a vision he had seen. "Oh, what a horrible picture I was permitted to see!" he said. He described a period of about 100 years when Satan’s power was to reach its maximum, a decline of moral and spiritual values. Those hundred years would have included most of the 20th century.
- Pope Pius X (1903-14): This Pope had a number of prophetic visions. In 1909, in the midst of an audience with members of the Franciscan order, he seemed to fall into a trance. Moments passed, then his eyes sprung open and he jumped to his feet. "What I have seen is terrifying!” he cried out. “Will I be the one, or will it be a successor? What is certain is that the Pope will leave Rome and, in leaving the Vatican, he will have to pass over the dead bodies of his priests!" It’s uncertain what this vision alluded to, but it is similar in many respects to the reported third prophecy of Fatima. Later, shortly before his death, another vision came to him: "I have seen one of my successors, of the same name, who was fleeing over the bodies of his brethren. He will take refuge in some hiding place; but after a brief respite, he will die a cruel death. Respect for God has disappeared from human hearts. They wish to efface even God's memory. This perversity is nothing less than the beginning of the last days of the world."
- Pope Pius XII (1939-58) also experienced strange visions of a bleak future. After one of these experiences he told confidants, "Mankind must prepare itself for sufferings such as it has never before experienced… the darkest since the deluge."
These sound similar to what Dixon and Malachy said. I guess skeptics would probably say they are all just borrowing from Malachy's prophecy. But what if they are all seeing the same thing? It should be noted that all of these predictions were made by Catholics. Are they seeing the end of their own organization? Is what they have seen going to happen in the not so distant future? I guess we'll just have to wait and see.