I think this is pure fear mongering… sister Lucia herself said that Fatima was about the struggle of the Church against atheistic communism… See below for all you need to know on Sr Lucia and Fatima.
In a interview at Fatima, Pope Benedict XVI (then Cardinal Joseph Ratzinger) spoke about visions and apparitions: “To all curious people, I would say I am certain that the Virgin does not engage in sensationalism; she does not act in order to instigate fear. She does not present apocalyptic visions, but guides people to her Son. And this is what is essential.”
Third secret of Fatima is not, he said, “sensational or apocalyptic.” He continued, “Preoccupation with the message and its presumed predictions of catastrophe are not part of a healthy Marian devotion. The Madonna did not appear to children, to the small, to the simple, to those unknown in the world in order to create a sensation.” Mary’s purpose “is, through these simple ones, to call the world back to simplicity, that is, to the essentials: conversion, prayer, and the sacraments.”
From the Theological Commentary on Fatima from Cardinal Jospeh Ratzinger (future Pope Bendict XVI):
A careful reading of the text of the so-called third “secret” of Fatima, published here in its entirety long after the fact and by decision of the Holy Father, will probably prove disappointing or surprising after all the speculation it has stirred. No great mystery is revealed; nor is the future unveiled. We see the Church of the martyrs of the century which has just passed represented in a scene described in a language which is symbolic and not easy to decipher. . . . Thus we come finally to the third part of the “secret” of Fatima which for the first time is being published in its entirety [Ratzinger, MF, op. cit.].
Sr. Lucia herself indicated that she agreed with the interpretation offered by the Vatican: "Sister Lucia agreed with the interpretation that the third part of the “secret” was a prophetic vision, similar to those in sacred history. She repeated her conviction that the vision of Fatima concerns above all the struggle of atheistic Communism against the Church and against Christians, and describes the terrible sufferings of the victims of the faith in the twentieth century [Bertone, MF, op. cit.]. "
